Thursday, May 28, 2020
Learn from Reading Analysis Essay Samples
Learn from Reading Analysis Essay SamplesReading analysis essay samples is the most economical way to evaluate the basic skills of a student of the English language. It is an interesting and effective way to help you find out what is required to advance in your subject. Reading analysis essay samples are also highly appealing to students because they can easily access these through the internet. The study materials available online are generally the best on the market today.These resources play an important role in your studies. Whether you are pursuing a diploma or you are going to do your Masters, your results will be affected by the tools that you have. Therefore, you should make sure that you take advantage of the reading analysis essay samples that are available online.Reading analysis essay samples are actually categorized into different subjects and it has been explained in this article. For instance, if you are looking for grammar problems, you can choose from the ones that a re related to grammar and word problems. Some of the samples are based on other aspects such as spelling and punctuation, for example. For instance, you can find English grammar essays online. These can help you discover what your weaknesses are, so that you can use the correct strategies for solving them.Other essay samples have to do with literature and it can also be about history. Many of the problems in this domain are related to the strategies that you have to use in order to find out a suitable topic. Some of the essay samples that are available online deal with essay writing and the skills that you need to know about it.Furthermore, you should also consider that reading analysis essay samples that are based on the topic that you want to learn is also essential. There are many of them available and they all claim to be superior to the rest. Of course, you will not get the full advantages of the samples, but it will help you become aware of your weaknesses, weaknesses and your strengths.If you want to make full advantage of the sample materials, you should take the time to find out which ones are the best. It is only with the appropriate tools that you can reach your goals. Most of the time, you will be able to find the most excellent reading analysis essay samples at sites where you can access them for free.This can help you solve the main question that you have: how to improve in your subject. You can find the best results when you use the resources from the internet.In the end, you should know that you can make the most of your reading analysis essay samples. After all, you should always be learning. You can also find more ways to help you learn from the resources that you have access to online.
Tuesday, May 26, 2020
Techniques for Step up to Writing Essay Template Only Handful of People Know About
Methods for Step up to Writing Essay Template Only Handful of People Know About Things You Won't Like About Step up to Writing Essay Template and Things You Will When you are mentioned to form an article. You can likewise observe article traces. SAT Essay composing requires an amazingly specific arrangement of abilities. The five-section article awards you the standards of composing an exposition, particularly one where you're mentioned to demonstrate a point or perhaps to invalidate a point. Articles are something which you'll unquestionably experience during school. Composing an exposition is a difficult undertaking. Composing an eminent exposition requires union of material that can't be finished in the 20-30 minutes you have during the test. Composing an expository article takes a significant level of proficiency and the capacity to dissect the utilization of language. Much the same as there are different types of article composing, there are particular kinds of frameworks accessible for it as well. A wide range of instructive articles require a very much organized theory proclamation. Deciding the kind of exposition is the absolute initial step to composing a focused on article. Following your examination, you would show signs of improvement thought of the general substance of your exposition. Venture up to Writing Essay Template If you're believing that you will require somebody to form my article as of now, you can simply depend on our genuine surveys. Before you can start composing, you should get a plan to expound on. A diagram is a piece of the composition as it helps the essayist remain centered and with regards to the foremost theme. For each part, the points of interest of how we are probably going to make the exposition must be nitty gritty. In the wake of picking the subject, set up the diagram of whatever you have to compose. You can make a rundown of points, and set the most significant one at the front of the rundown. In the event that the theme isn't one that was doled out for you, at that point you ought to think about the best subject. Endeavor to find a theme that you're as of now enthusiastic about so you will have a great deal of things to compose. Influential papers clarify a theme when endeavoring to convince the perusers your viewpoint has gotten the most coherent, substantial, and educated one about the subject. The presentation comes in the beginning and the one draws in light of a legitimate concern for the perusers. Your theory ought to illuminate the peruser what point you will be making or what question you will be replying about this issue. Following that, you should recognize the aim of the point. You'll presumably end up perusing portions of the entry on numerous occasions to be certain you completely get it. Set forth plainly, it's an introduction to your decision. In either occurrence, you'll need to be certain you get an extraordinary thought of how the entry is spread out before you do an exhaustive go through it. You could likewise observe diagram models. As in a wide range of composing, a diagram is an extremely away from of the general structure of the paper. Exposition layout is a skeletal diagram that provisions a stage on which you can build your own composition and produce your own considerations. On the other side, decimal framework structure utilizes a progression of numbers to perceive every subsection. You just require a couple of passages for it and you can proceed onward to the body. Simply remember that the body passages ought to relate to your key contentions. The Good, the Bad and Step up to Writing Essay Template The following activity is to record a guarantee and use novel sources and data to demonstrate it. Probably the best approaches to deal with it lies backward. Or maybe, complete the buy structure and our team of master scholastic essayists will be there to help you. There are a few choices for you to pick which you can take from the numerous locales of study. On the off chance that it's a story loaded with life exercises, compose it like a short story. To have the option to make an article it's critical to take a gander at your composing abilities and territories. These models can assist you with it. In the event that you pointing an unrivaled score and stick out in your group, you can rehearse on the scope of exposition diagrams accessible on our essential site.
Research Proposal Thesis Secrets
Research Proposal Thesis Secrets Research Proposal Thesis Secrets That No One Else Knows About The proposal should be exact, straightforward, and concise. Such styles as MLA and APA differ, so you must be positive which you're mindful of all of the rules and guidelines. Proposal writing is valuable to your pursuit of a graduate level. For many students open-ended questions have a lot higher likelihood of succeeding. Email has the benefit of forcing you to receive your thoughts into written words that may be refined, edited and improved. New Step by Step Roadmap for Research Proposal Thesis Clarifying your method will permit the reader to fully grasp how you approached the research. The proposal should have enough info to convince your readers that you have a significant research idea, that you've got a great grasp of the appropriate literature and the big problems, and your methodology is sound. The abstract should be in active voice if it's possible to achieve that. Hear say, Lies and Research Proposal Thesis In many instances, the structure of the thesis proposal will be contingent on the topic matter of the thesis and your subject of study. You will have the ability to use a huge fraction of the fabric of the thesis proposal in your final senior thesis. It is crucial to realize that the thesis proposal is really an extremely brief thesis. A thesis proposal is a brief document that explains what the thesis you would like to write will be about, what sort of research you'd do in order to write this, and what type of problem you're trying to solve by writing it. Get the Scoop on Research Proposal Thesis Before You're Too Late Research Paper isn't a task for a single day. Research and writing the undertaking can't start until the proposal was approved. Because the thesis proposal is so vital, you should know what things to include and see examples so you can make sure your proposal is accepted the very first time. Every thesis proposal will be different slightly. A superb thesis proposal hinges on a great idea. A perfect thesis proposal is one that's robust and flexible. Clearly recognize the crucial sources you mean to use and explain how they are going to give rise to your analysis of the topic. After narrowing the subject, you must work with a working thesis. All the info should be shown accordingly in order for your target audience can easily understand the stream of your discussion. If you pick a topic that's not of interest to you, it is going to show in your paper. Research Proposal Thesis Second, great drawings are extremely valuable. So it is necessary to communicate as a way to compose a paper that's original as if written by you. The academic level and the intention of the paper, if it's the dissertation or a nother sort of assignment, plays a part in what goes into the initial proposal. As you examine one research proposal example after another, you will observe the kind of the paper differs on the sort of coursework regarding the paper in question. A thesis is the consequence of an extended thinking procedure and careful deliberation after preliminary research. There are particular reasons why a thesis proposal is critical to be made aside from the simple fact it is mostly included in the requirements of creating a research paper. You are able to use a research proposal example to aid in designing your own template. Research proposal writing requires a scientific strategy and wide degree of wisdom and skill. Where to Find Research Proposal Thesis You should construct a thesis which you are well prepared to prove employing the tools you've got available, without needing to consult the world's top expert on the issue to supply you with a definitive judgment. Read everything you may find in your field of interest. By the moment you graduate you'll be part of a little community of folks who specialize in your specific place. Then just compose the critical parts as the proposal. Proposals often contain figures from some other articles. The previous page of your research proposal ought to be the bibliography. The word abstract must be at the surface of the page in all-capital letters. The research proposal template is going to have an area at which you can set the title of the document. If you choose a meaningful topic, the everyday setbacks in your research is not going to bring you down. Concentrate on the research topic which you will develop. Demonstrates your understanding of the research issue. Demonstrates your comprehension of the theoretical and research issues associated with your research question. Starting your research in a region where the methodology was established will teach you the essential research skills for your area. A discussion of the research techniques that you have used 5. Explain how you intend to begin conducting your research. Since there are numerous strategies for conducting research, you will need to clarify your research strategies.
Sunday, May 24, 2020
Top Choices of Essay Samples for Uiuc
<h1> Top Choices of Essay Samples for Uiuc </h1> <h2> The Unexposed Secret of Essay Samples for Uiuc </h2> <p>As soon as I became more seasoned, my inclinations changed, and I understood it to bring in OK cash, an individual ought to find a satisfactory line of work first. There's inadequate space for an out and out presentation, subsequently it's much better simply make a plunge. A man may not be excessively cautious in the determination of his adversaries. I have consistently appreciated riding in vehicles. </p> <h2> The Fundamentals of Essay Samples for Uiuc Revealed </h2> <p>Someone learns the estimation of dependability every night. All through my youth, I was fortunate enough to be able to take in a few purposes of perspectives from my folks because of their exceptional foundations, causing an interesting childhood that I trust Barnard understudies have as well. Nonetheless, this doesn't detach understudies by compelling the m to work with just those individuals who follow their exact control. In the event that you envision seeking after something comparative at UIUC, presently's a critical opportunity to communicate that. The reasons may be completely unique. </p> <h2> What About Essay Samples for Uiuc?</h2> <p>The archive is all around intended to fulfill the necessities of a specific crowd or kind of crowd. The two models handle precisely the same subject (wiped out parent) however use different methodologies. This area of the reaction is an incredible opportunity to show your comprehension of UIUC-explicit projects. Moreover, one is a 500-word answer and the other one is a 1,000-word reaction.</p> <p>On the other hand, the IEE can likewise cover additional territories which don't show up on the MEE. Luckily, LSA licenses me to investigate a lot of majors found in the few schools of the University of Michigan. </p> <h2>Essay Samples for Uiuc - Is it a S cam? </h2> <p>It follows that we consider every one of your guidelines which are more explicit than fundamental highlights remembered for the buy structure. In people, for instance, the index is viewed as a minimal structure. </p> <p>I began exploring PCs and altering programming to find that learning this data wasn't just basic, however interesting. Remember this is a piece of your school application! In case you're using the Common App to record your school applications, you should figure out which article brief is the absolute best one for you. As a result, such understudies begin searching for the best article help to be sure that their venture will be created at the maximal level as per every scholastic norm. </p> <h2> The Dirty Facts About Essay Samples for Uiuc </h2> <p>As an aftereffect of Sam, I am alright with individuals that are unique. Impaired proposes something isn't right, yet Downs is just piece of who Sammy is. Something which is offered, introduced, or given as a present. </p> <p>Consequently, we ensure that there won't be any undesirable shocks once the day of conveyance comes. Also, so as to have sufficient opportunity to change, you have to begin route before the application cutoff time. Due to this assurance, the conveyed request will consolidate all indispensable data. Permit it to sit for two or three days immaculate. Oftentimes, the last item will be evaluated utilizing a rubric. Cause a layout, to compose a not too bad first draft, and alter ordinarily. </p> <h2>The Appeal of Essay Samples for Uiuc </h2> <p>You'll watch a comparable structure in a few of the articles. Papers can be imaginary too. Most fundamentally, guarantee your expositions are actually an impression of you. Stephen's paper is fairly compelling. These seven example articles react to a wide scope of intriguing questions.</p> <p>Students get a theme on which to make the paper. Continue perusing to realize what the current UIUC exposition brief is and how to form a marvelous UIUC article. The span of the paper may differ incredibly as can the kind of article. If it's not too much trouble know that a couple of these school exposition models might be reacting to prompts that are done being utilized. Finally, consider this supplemental exposition a way to communicate how perfect you're with the school you're applying to.</p>
Saturday, May 23, 2020
How to Write an Essay on How You View Your Writing Skills
<h1>How to Write an Essay on How You View Your Writing Skills</h1><p>So you need to realize how to compose an article on how you see your composing abilities right now. The initial step is to ensure that you are giving yourself a legit appraisal of where you stand and in the event that you are doing the composition for benefit or personal growth purposes.</p><p></p><p>Then start with a fair evaluation of what you have accomplished, the inspirational disposition that you believe you have and how you trust you will keep on advancing as an essayist. This is the means by which you can choose if you are going to handle this assignment with certainty or not.</p><p></p><p>Writing an article isn't simple. Nobody can foresee what they are going to state. It's significant that you require some investment to get all that you need before plunking down to write.</p><p></p><p>Essays don't need to be great. Si mply compose what you need to state and permit it to justify itself with real evidence, this will likewise assist you with developing the language aptitudes that are expected to encourage your composing ability.</p><p></p><p>It's additionally acceptable to have a decent arrangement of word references and sentence structure books close by. Most instructors will be extremely glad to see that you set aside the effort to peruse your article before composing it and for you to set aside some effort to clean it up.</p><p></p><p>How to compose a paper on how you see your composing aptitudes as of right now is an expertise that is created after some time. In the event that you are composing on something that you have not utilized previously or on a subject that you need more involvement with, it is ideal to work gradually and gradually.</p><p></p><p>Once you have something composed that you can put your own words to, you can move onto another point. Try not to get too stirred up with regards to composing your essay.</p>
Friday, May 22, 2020
Data on Antibiotics
<h1>Data on Antibiotics</h1><p>An contentious article with information on anti-infection agents ought to be written in a way that is clear and exact, and that doesn't appear to be deceiving. In the first place, we have to know precisely what anti-microbials are. Anti-toxins are drugs used to battle microorganisms, and these are utilized to fix maladies and to shield the human body from infection.</p><p></p><p>Antibiotics have gone under some analysis, in light of the harm they may cause to an individual's framework. This has been seen for quite a long time, however it was perceived all the more truly in the previous century or thereabouts. The utilization of anti-microbials is viewed as a general medical issue, since they have been found to harm the gastrointestinal tract, and other organs.</p><p></p><p>Some individuals need to take anti-infection agents consistently. These are the patients that have progressively genu ine illnesses, or who have delicate stomach related frameworks. Different patients take anti-infection agents less as often as possible, or not in the least. Anti-microbials can likewise assist with keeping unsafe microscopic organisms from creating in the first place.</p><p></p><p>There is a great deal of discussion about the dangers of utilizing anti-infection agents. However, we should take a gander at the advantages, on the grounds that a considerable lot of them are significant without a doubt. They incorporate anticipation of the spread of microscopic organisms, for example, those that cause strep throat, or bronchitis, and they help to reinforce the invulnerable system.</p><p></p><p>Some of the meds used to battle these microorganisms are extremely powerful. For instance, penicillin is a profoundly compelling anti-toxin against these sorts of microorganisms. Nonetheless, we should recall that a few prescriptions have side effect s.</p><p></p><p>If a patient with a gentle instance of a contamination, for example, a strep throat, or a mellow or moderate instance of an extreme respiratory disease, takes an anti-toxin, the medications may expand the danger of microbes advancing and therefore increment the odds of another contamination happening. As such, you can get a ton of prescriptions without thinking about the symptoms. The information on anti-toxins with reactions ought to be remembered for the example contentious paper with information on antibiotics.</p><p></p><p>Another risk with anti-toxins is that they are not awesome for infants and small kids. They can cause genuine symptoms for these gatherings. The information on anti-infection agents with reactions for kids and infants ought to be remembered for the example contentious article with information on antibiotics.</p><p></p><p>There are as yet numerous instances of individuals wh o have built up an anti-toxin protection from their picked drug. For whatever length of time that anti-toxins are accessible, and as long as anti-microbials are being utilized, it is significant that individuals stay up with the latest with the symptoms of their prescriptions. Information on anti-toxins with reactions ought to be remembered for the example pugnacious paper with information on antibiotics.</p>
Tuesday, May 19, 2020
What Are Some Common Writing Mistakes?
<h1>What Are Some Common Writing Mistakes?</h1><p>Writing a decent scholastic paper can be troublesome and in some cases requires a great deal of arranging and some work. Composing a paper that would mirror your character and do equity to the paper's point can appear to be a task yet can really be a significant charming encounter. There are some exceptionally regular slip-ups that most understudies make when composing a paper, and we will take a gander at what these things are so you recognize what to avoid.</p><p></p><p>Going over the edge If you go over the edge in your paper, you may need to curtail some different pieces of your character. You may very well need to mind your own business for some time so you can hold your feelings under control. It isn't reasonable for other people and it is more humiliating to commit an error than to give a poor performance.</p><p></p><p>Talking to an extreme If you begin going on and on about your subject you may lose perusers. You would prefer not to talk so much that your paper sounds exhausting. So attempt and put in something significant and give your perusers something to consider other than what they read on your paper.</p><p></p><p>Incorrect Citation-If you don't property effectively, you will probably have another person right your work and give you contrary imprints. At long last, on the off chance that you utilize the right reference, your paper will get a passing mark. By and large you need to ensure that the reference you use for your source is precise, regardless of whether it's just an off by one error.</p><p></p><p>Wrong Word Choices-When you change your composing style and utilize an inappropriate words you are bound to commit an error and aggravate your paper than what it was previously. Utilize your composing abilities and ensure you are steady with your decision of words.</p><p>&l t;/p><p>Writing too quick Sometimes individuals simply compose excessively quick and don't have the opportunity to truly ingest the data appropriately. Rather than attempting to pack data into your paper, compose moderate so your cerebrum can process all that you have to state. In the event that you put the whole theme on your paper, you will be bound to locate a superior method to express what is on your mind than if you were simply perusing it.</p><p></p><p>A essayist's section Sometimes you will compose a couple of passages to recount to a long story. You can decide to separate this story into littler sections, which will assist you with sorting of recollect the primary concerns of the story. This is far superior to just composing the entire thing in one sentence.</p><p></p><p>These are only a couple of regular composing botches that a ton of understudies make. One reason why they are not the best essayists is on the ground s that they don't understand that they are committing these errors. In the event that you notice you are committing these sorts of errors, at that point begin once again and change your composing style to show signs of improvement evaluation and better outcomes for your paper.</p>
Monday, May 18, 2020
Research Paper Topics About Conflicts in the Human Body
<h1>Research Paper Topics About Conflicts in the Human Body</h1><p>Research paper themes about clashes in the human body. This is an issue that is on numerous individuals' psyches, and in light of current circumstances. It very well may be difficult to discuss this since it isn't something that everybody needs to discuss. Yet, on the planet we live in today, with the entirety of the awful things going on the planet, it is something that individuals need to find out about and act on.</p><p></p><p>The most ideal approach to talk about this point in an examination paper is to begin by having some foundation data about the topic. Individuals will in general avoid talking about this subject since they believe that on the off chance that they examine excessively a lot, it won't be intriguing. You have to ensure that the subject of the paper is intriguing enough for individuals to need to peruse it.</p><p></p><p>Research pape r points about clashes in the human body can be around one of two things. The first is extraordinary episodes of outrage and hostility. The second is wretchedness or pity. Everybody has those emotions, however on the off chance that you have them over once more, it can turn into an issue. Analysts realize how to treat these feelings, yet we have to start treating them consistently to help with them.</p><p></p><p>Think about how your children would respond on the off chance that they returned home from school and had a kin who had a fit or simply didn't appear to be cheerful. You would need to enable your youngster to control their conduct, isn't that so? So is there any valid reason why you wouldn't have any desire to help control your own moods?</p><p></p><p>Another case of research paper subjects about clashes in the human body incorporates bipolar turmoil. Somebody with this condition might not have some other side effects, however they can be extremely hasty and foolish. They can likewise pull back from loved ones members.</p><p></p><p>Often they will remain at home alone and be furious about something or they won't have the option to help themselves from carrying on. Scientists realize how to treat this sort of individual. By treating these individuals' feelings, they can figure out how to deal with their conditions and live typical lives. It is imperative to enable your youngsters to comprehend that they have to have sentiments and express them, as well.</p><p></p><p>Some different instances of research paper points about clashes in the human body incorporate kidney malady and fibromyalgia. Fibromyalgia is an ailment that generally strikes ladies, however can likewise influence men. The signs are a lot of like the indications of menopause, yet they can be much more severe.</p><p></p><p>As you can see, look into paper themes about clashe s in the human body are an extremely wide point that influences numerous individuals. It is significant that we know however much as could be expected about these conditions, particularly in our youngsters. Converse with your PCP and instruct yourself so you can enable your kids to realize that there is trust and that they don't need to be casualties of life, and this condition doesn't need to manage their lives.</p>
Friday, May 15, 2020
Mean Reversion And Stochastic Volatility Finance Essay - Free Essay Example
Sample details Pages: 28 Words: 8285 Downloads: 1 Date added: 2017/06/26 Category Finance Essay Type Research paper Did you like this example? Finance is one of the most rapidly changing and fastest growing areas in the business world and new mathematical models are essential to implement and price these new financial instruments. The classic Black-Scholes model, the Jump Diffusion model, Mean-Reversion Jump-Diffusion, Finite Differ ence Method and Monte-Carlo valuation arewidely used in option pricing. A meaningful number of empirical evidences in literature have tested the effectiveness of the models using historical data. Donââ¬â¢t waste time! Our writers will create an original "Mean Reversion And Stochastic Volatility Finance Essay" essay for you Create order This dissertation aims at analysing how do the prices of options react under mean reversion and stochastic volatility. Chapter 1 Introduction Anoptionisacontractwhichgivesits owner,therightbutnotthe obligation,tosellorbuy an underlying asset at a specified price which is known as the Ãâà ¿Ãâà ½strike priceÃâà ¿Ãâà ½ before or at a fixed expiration date (at maturity). An important key to success in the market of options, is paying the the right price for an option, when an individual buys one, or when he writes (sells) an option. Nearly all operators on the option exchanges and most option professionals use modelsof option pricing, like Ãâà ¿Ãâà ½Option Master R .Ãâà ¿Ãâà ½ every time, for the determination whether options are overpriced or underpriced according to such pricing models. Option pricing is so important because when an individual pays too much for an option, even if the commodity futures price or the underlying stock , on which the option is purchased moves in the right direction, the individual will most probably not get enough payment for his potential risk. On the contrary, when one buys an underpriced option, he will obtain more bene fits compared to the risk when the underlying stock, commodity or index moves in the right direction. Options can be written on a variety of things: Interest rates, stock indexes, stock price. Financial options can be useful in helping banks and corporations to be more effective and efficient in meeting their risk management objectives. When financial derivatives are 1 used without a plan or improperly used, they can cause serious damage by pulling the organization in a wrong direction so that itÃâà ¿Ãâà ½s ill prepared for the future, or by causing serious losses. Financial derivatives, make it possible for companies to initiate productive activities that might otherwise be done. There are many different forms of options, which is related to when you can exercise them. Among the different types of options, thereÃâà ¿Ãâà ½s European option where the holder exercise only on the expiration date and is the most common type. ThereÃâà ¿Ãâà ½s American option where the holder can exercise at any time before the expiration date. The payoffof an option takesinto account what the holder will get at expiration, and not what they paid for the option. An option is known to be Ãâà ¿Ãâà ½in the moneyÃâà ¿Ãâà ½, if, it was able to be exercised immediately, so the payoff would be positive. An option is Ãâà ¿Ãâà ½at the moneyÃâà ¿Ãâà ½, if, the underlying asset is at the strike price and, an option is known to be Ãâà ¿Ãâà ½out of the moneyÃâà ¿Ãâà ½ if the holder wouldnÃâà ¿Ãâà ½t execute immediately. For both call and put options, the greater the volatility of the underlying stock, the more likely is the option to move into t he money. Financial options are important tools that help organizations to reach their specific risk management objectives. It is important that a user understands the type of the optionsÃâà ¿Ãâà ½s intended function and all the safety precautions to be taken before the option is used. Bachelier (1991) proposed a formula, in particular, for the price of an option, based on the idea that the fluctuations follow a Brownian process. Bachelier (1991) is the among the first person who made a contribution which was of utmost importance to the issue of valuing stock options was the Bachelier whose approach was based on one important assumption Ãâà ¿Ãâà ½the expected profit of investments in options is zeroÃâà ¿Ãâà ½ Hjortsberg(2007). Option pricing was then workedby BlackScholes (1973), who introduced their sem 2 inal work on the theory of option pricing in 1973. Over the last decades, due to the work of BlackScholes(1973),opti on valuationproblemhasgainedalotof attention. SinceBlack and Scholes published their seminar, in 1973 on option pricing, there has been huge investigations, theoretically and empirically on option pricing. Over the past few decades, there has been the development of options to provide the basis for corporate hedging and for liability/asset management of financial institutions and corporate hedging. The theory of option pricing has a long history, only until Black and Scholes, in the year 1973, presented their first equilibrium option pricing model. Besides, Robert Merton extended the Black- Scholes model, in the same year, in several important ways. The Black-Scholes formula, since its invention, has been extensively used by traders for the purpose of determining the price of an option. Despite this, the famous formula was questioned after the crash in 1987. Following the Black and Scholes option pricing model in the year 1973, a numbers of other app roaches were developed, such as, the Jump Diffusion model which was suggestedby Merton (1976). CoxRubinstein (1979) introduced the numerical method FiniteDifferencesandCarlo(1964)forthepricingofthe derivativedirectedbysolvingthe underlying partial differential equation. Documentation from many empirical studies have shown that geometric Brownian motion (GBM) models are not adequate, in relation to the descriptive power, and even to the mispricing that they might generate. The contributions made to the actual volume deal with many generalizations of the basic geometric Brownian motion and here emphasisisplacedonthefactthatinterest ratesandreturnsof various assetpricesmay exhibita jumping behaviour. So possible superpositions of jump and diffusion processes have been studied, which is known as the jump-diffusion processes, the purpose of which is not the studyofaLevy drivingprocess,butto rather emphasizeonthe specific aspectsofthesubclass of Jump-di ffusion. Jump-diffusion models also have some intuitive appeal because they let interest rates and prices change continuously most of the time, however, they take 3 into account the fact that now and then, larger jumps may occur and these large jumps cannotbe suitably modeledby the pure diffusion-typeprocesses. Most of the financial theory is based upon random walk of asset prices, yields and returns. Still, over the last twenty years, the theory has been extended to have a closer view of the departures from a random walk. This theory was being used for various purposes which includes capital adequacy, investment strategy, and the pricing and hedging of options. However, the random walk is a special case for a wider range of models, which includes mean reversion. It is recommended that some classes of mean reversion models reducethe capital seeminglyrequiredformany classesof insurance business,relativelyto theresults obtainedfrom random walks. Thi s stimulatedthe actuarial interestinthe mean reversion class of models. My project will focus on Black Scholes, mean reversion and the mathematical implementation. In the next section we havePreliminaries anda deeper view on the Black Scholes (1973) model accompanied with its drawbacks. In the next chapter, mean reversion is discussed 4 Chapter 2 Preliminaries 2.1 Introduction to Functional Programming under the Mathematica. environment Functional programming is a programming model that treats calculations as the evaluation of mathematical functions and avoids mutable and state data. It places emphasis on the applications of functions, in cont rast with the style of imperative programming that places emphasis on state changes. The functional programming languages places emphasison pattern-matchingandrules.Itis particularlyusefulfor mathematicalwork,inwhich the notion of Ãâà ¿Ãâà ½functionÃâà ¿Ãâà ½ is wel l a well established concept. Mathematicar,isapowerful computational softwareprogram thatis usedin engineering, scienti fic, and mathematical fields and other areas of technical computing. The person who firsthadtheideatocreatesucha softwareis StephenWolframandthis softwareis developed by the Ãâà ¿Ãâà ½Wolfram Research of Champaign, llinoisÃâà ¿Ãâà ½. Nearly any workflow includes computing results, and this is what Mathematicar, does. That is, from building a hedge-fund trading website, to a devel oping embedded image-recognition algorithms or the teaching of calculus. Mathematicar,is well-known as the worldÃâà ¿Ãâà ½s latest application for 5 2.1 Introduction to Functional Programming under the Mathematica. environment computations, but itÃâà ¿Ãâà ½s much more. It is the sole development platform that fully integrates computation into complete workflows, that moves you seamlessly from starting ideas, all the way to the arranged individual or enterprise solutions. Mathematica. is a computer language of high level, which has a large number of operations and in-built functions and this means that for various purposes, programming in the traditional senseisnot necessary. Alternatively,an individualjustusea seriesof built-in functions and this has various advantages of which the main advantage is the speed of programming, that is not having to do the basics over again, saves a lot of time. The built-in functions are very flexible and optimised and are also well joined with each other and their properties: numerics, derivatives, series and integrals, are included into the kernel. The proposed model, which will be implemented in Mathematica c . enables the prices of options to be consistent simultaneously consistent with the volatility smile and the observed future prices of the option market. The proposed model is suf ficiently flexible so that financial analyst can perform scheme analysis with it and is as follows: Figure 2.1: The proposed model where #(t)isthe deterministic functionthatrepresentsthe equilibriummeanlevelofthe volatility against time, the constant . isthe meanreversionspeedofthe asset,the function a(t) is the equilibrium mean level of the volatility against time, the constant b is the mean reversion speed of the volatility. #, a constant, is the volatility coefficient of the volatility 6 2.1 Introduction to Functional Programming under the Mathematica. environment model, the process vt is the volatility of the underlying asset, that follows the Heston (1993) model, and Wt are correlatedWienerprocesses witha correlation coefficient #. The proposedmo delreducestothe Heston(1993)modelifthe meanreversionspeed, . is equal to zero. With the dynamic of the underlying asset, it is possible to acquire the characteristic function for the log-asset value Xt, which is implemented in Mathematica c . as follows: Figure 2.2: The Characteristic Function implemented in Mathematica c . The equations of B1, C1, D1 and other equations which leads to the characteristic function will be shown in appendix. After founding the characteristic function, The European options can be valued using Fourier inversion. Carr and Madan argues the Fast FourierTransform (FFT) to compute the vanilla call and put options that arebased on the characteristic function of the log-asset value. The payoffof the plain vanilla call option is max(ST K, 0) where T is the optionÃâà ¿Ãâà ½s maturity and K is the strike price. Let . denote the log of the strike price K and let qT (s) be the risk-neutral density of the log-asset price st = ln ST , and CT (#) be the desired valueofaT-maturity call option witha strike price exp(#). As per Carr (1999), CT (#), the modified call price is as follows: cT (#) = exp(##)CT (#) (2.1) for some constants # 0 7 Figure 2.3: FourierTransform .c and then call prices can numerically be obtained by using the inverse transform, implemented in Mathematica. itself: Figure 2.4: InverseTransform c . The values assigned to the various constants and variables to carry out the test in Mathematicar, is as follows: . = 0.25, n = 128, . = 1.5, a = 4.0339, . = 10, a = 0.5328, b = 3.33, . = 0.04, . = 0.9, r = 0.05, S0 = 1.3 v0 = 0.18, T = 1, and K, whichisthe strike price, variesandtheresultsofthe variationis showninthe table below: 8 2.1 Introduction to Functional Programming under the Mathematica. environment Table 2.1: Call option prices: FFT vs. Monte Carlo Strike Price FFT Monte Carlo %Difference 0.3747 1.06172 1.0658 -0.00408 0.4559 0.984477 0.9889 -0.00443 0.5549 0.890306 0.8958 -0.005494 0.6752 0.775873 0.7798 -0.003927 0.8217 0.636518 0.6413 -0.004782 1 0.466914 0.4719 -0.004986 1.2170 0.260889 0.2660 -0.005111 1.4810 0.0553335 0.0583 -0.0029665 1.8023 0.000997007 0.0011 -0.000102993 NIntegrate The function NIntegrate in Mathematica. is a general numerical integrator which can hand le a large range of one-dimensional and multidimensional integrals. NIntegrate[f, x, a, b] gives a numerical approximation to the integral . b f(x)dx (2.3) a Module Mathematica normally assumes that all the variables areglobal which means that every time an individual uses a name like x, Mathematica. will assume that the individual is referring to the same object. When one write programs, he might not want all the variables to be global. For example, he may want to use the name x as reference to two different variables in two different programs. So, in this case, he need the x in each program to be treated as a local variable. He can set up the local variables in Mathematica. using modules and within each module, the individual can give a list of the variables that are 9 2.2 Stochastic Calculus to be treated as local to the module. 2.2 Stochastic Calculus Stochastic calculusisacategoryof mathematicsthatisbasedon stochasticprocesseswhich comprises of a consistent theory of integration that are defined for integrals of stochastic processes withrespectto stochasticpr ocesses. Stochastic calculusis usedto model systems that have random behaviour. The main flavours. Stochastic calculus is the language of risk management and option pricing at fundamentally every big financial firm, and is also the strength of a large body of academic research on an corporate finance, asset pricing, and investor behaviour. 2.3 Call and Put Option Acall option is a financial contract between two parties which consists of the buyer and the sellerwherethebuyeroftheoptionhastherighttobuythe underlying assetatafixed price (strike price/exercise price) or at any time before the option expires. The buyer of a call option purchases the underlying asset with the hope that the price of the underlying asset will increase in the future while the seller of the call options expects that the price of the underlying asset is not more than the strike price. The buyer of the option makes a profit if the value of the asset is greater than the strike price,that is the buyer of the option buys the asset at the exercise price. On the other hand, if the value of the underlying asset is less than the strike price, then the option is not exercised and expires worthless. The diagram below shows the cash payoff on a call option at expiration. 10 2.3CallandPutOption Figure 2.5: Payoff on call option 11 2.3 Call and Put Option Aput option is a financial contract between two parties that gives the buyer of the option the right to sell an underlying asset at a fixed price or at any time before the option expires. Here, the buyer of the put option has the right, but not the obligation, to sell the underlying asset at the strike price and if he or she decides to sell at any time before the expiration date, the seller of the put option (put writer) is obliged to buy at the price stated by the buyer. The buyer of the put option makes an investment by purchasing the underlying asset with the hope that the price of the underly ing will decrease in the future when he will sell the underlying asset while the individual who is going to buy the put option expects that the price of the asset is less than the strike price. On the other hand, if the value of the underlying asset is more than the strike price, then the option is not exercised and expires worthless. The diagram below shows the cash payoff on a put option at expiration. Figure 2.6: Payoff on put option 12 2.3 Call and Put Option It has been seen that banks and other financial intermediaries reacted to new situation by developing many financial risk management products which were designed to control risk in a better way. The first product was the simple foreign-exchange forwards caused one party to sell, and the other party to buy, at an agreed date in the future, at a fixed amount of currency. Through entering in a foreign exchange forwardcontract, the customers could balance the risk that large changes in foreig n exchange rates would ruin the viability of the economy projects and hence options were first intended to be used to hedge certain risks effectively, and in fact, that was the key that opened up their explosive development. Options also help to ameliorate the market ef ficiency because risks can be classified and be sold to those parties who are willing to accept the risks at the least cost. The use of options breaks risks into pieces so that they be managed independently. Some corporations can keep risks that they can manage most comfortably and they have the choice to transfer those risks that they do not want to manage, to other companies that are willingto accept them.Fromamarket oriented perspective, financial optionsofferfree trading of financial risks. Similarly to the prices of most things, optionsÃâà ¿Ãâà ½s prices can be sensitive to market demand, but there are wise techniques one can use to determine the fair option value. There are many factors than can a ffect opt ion pricing. Before proceeding in the world of trading option, the investors should have a good knowledge of the different factors that are used to determine the value of an option. The factors are cash dividends, interest rates, volatility, time value or time to expiration, the intrinsic value and the current stock price. There are many options pricing models that use the mentioned parameters to determine the fair valueofanoption.Ofthe severaloptionpricingmodels,the Black-ScholesmodelBlack Scholes (1973) is the most widely used. In many different ways, options are just similar to any other investment in which one needs to understand what determines the fair price of an option in order to be able to use them. 13 2.4 Black-Scholes European optionsare securitiesthatgivethe ownertherighttobuyan indexorastock at a certain date at a certain price. It is an option that may only be exercised at the end of its life, at its maturity. An American is an option th at may be exercised at any time during its life. An American option allows the holder of the option to exercise the option at any time before and including the maturity date, which t his increases the value of the option to the holder of the option, as compared to a European option, where the option can only be exercised at maturity. ABermudaoptionisanoptionthatgivesthebuyertherighttoexerciseatasetnumber of times. This is an intermediate between a European option and an American option. 2.4 Black-Scholes TheBlackScholes(1973)formulaiswidelyusedto calculatepricesofoptions. However, in the year 1973, a turning point occurred in the evolution of trading of options, when the professors BlackScholes (1973) wrote the paper Ãâà ¿Ãâà ½Pricingof Options and Corporate Liabilities Ãâà ¿Ãâà ½. Based on the assumption that a risk-free rate of interest existed, this was viewed as a fundamental effort at expressing option pricing and corporate bonds. Thou it is us ed mostly in institutional portfolio management departments, it is still used today for predicting what options should be worth. Since its introduction in 1973, it has been been tested against the option miss-pricing, by many. The precision of the generated price of Black-Scholes depends very much on the accuracy of the parameter inputs, such as, time, interest rate, strike and exercise price are known precisely, and hence they are relatively accurate and easily determined. The Ãâà ¿Ãâà ½Black-ScholesÃâà ¿Ãâà ½ model which is also known as the Ãâà ¿Ãâà ½Black-Scholes-MertonÃâà ¿Ãâà ½ model 14 2.4 Black-Scholes is one of the most important concepts in modern financial theory which contains certain derivative investmentinstruments.Itwas developedbyBlackand Scholes.Itisoneofthe best ways of determining fair prices of options and it is still widely used today. The Black-Scholes formula is as follows: C = SN(d1) Ke..rtN(d2) (2.4) where: C=Theoretical call premium, S=Current Stock price, t=time until option expiration, K=option striking price, r=risk-free interest rate, N=Cumulative standardnormal distribution, e=exponential term(2.7183), s=standarddeviationof stockreturns, ln=natural log arithm. s 2 ln S K + r + 2 tv t (2.5) v d2 = d1 s t (2.6) Merton (1976) is an American economist who is known for his work on risk management and finance theory and especially for his contribution in assessing stock optionÃâà ¿Ãâà ½s value and other derivatives. MertonÃâà ¿Ãâà ½s work on the valuation of option is perhaps the most influential even thou his research covers many areas of economics and finance theory. When Black and Scholes published their formula, prior to 1973, which determines the value of stock options, was very difficult and risky because of the nature of options, which essentially areagreementsthatgivethe investorstherighttoeithersellorbuyanassetatafixedtime in the future. The challenge of an option is to prognosticate its value at a distant time. Before the introduction of the Black-Scholes formula, those investors investing in options determined a risk premium in order to hedge against major financial losses. It was shown 15 2.4 Black-Scholes by the Black-Scholes formula that the risk premiums are not needful for investment in stock options because those premiums are already calculated in the prices of stocks. In order to generalize the Black-Scholes formula, Robert C. Merton used his knowledge in mathematics, by modifying certain assumptions and restrictions which was set by Black and Scholes, such as the unlikely assumption that no dividends will be not be paid by the stock. By modifying this formula, Merton permitted it to be applied to other financial issues, such as student loans and mortgages. Scholes, Black and MertonÃâà ¿Ãâà ½s assumptions are as follows: 1. There is no dividend during the life of the derivative 2. Options can be exercised only upon expiration 3. There are no arbitrage opportunities 4. The trading of security is continuous in time 5. There are no taxes or transaction costs, all securities are perfectly divisible 6. Stock returns are normally distributed and hence volatility is constant over time 7. Interest rates remain constant 2.4.1 Black-Scholes, Partial Differential Equation (PDE) A partial differential equation (PDE) is a differential equation that has unknown multi-variable functions and their partial derivatives. Partial differential equations are used for the formulation of problems that involve functions of various variables, and are either resolved by hand or used to create a relevant computer model. As stated above,The equationof BlackScholes (1973)isa partialdifferential equation, that describes the price of an option over time. An idea of upmost importance behind the equation is that an individual can perfectly hedge an option by selling and buying an 16 2.4 Black-Scholes underlying asset in the right way and hence eliminating risk. The hedging in turn means thatthereisonlyone correctpriceforanoption,asreturnedbytheBlackScholes(1973) formula which is as follows: @V 1 @V #2S2 @2V ++ rS rV =0 (2.7) @t 2 @S2 @S HereIpresent an analytical solution for the BlackScholes (1973) PDE, @V 1 @V #2S2 @2V rf =+ + rS ;V = V (t, S) (2.8) @t 2 @S2 @S over the domain 0 S 8, 0 = t = T , with a terminal condition V (T;S)= (S) , by the reduction of this parabolic PDE to the heat equation of physics. The substitution u = exp[-rt]f is made, which is stimulated by the fact that it is the portfolio value which discounted by the interest rate r that is a martingale. The product rule is used on V = exp rtu, and the the PDE that the function u should satisfy is derived: @u @u 1 u #2S2 @2 0= + rx + (2.9) @t @S 2 @S2 Now, we substitute y with log S, and s with T t. These changes of the variables can be stimulated by observing that: Ãâà ¿Ãâà ½ The underlyingprocess whichis describedby the variableSisa GBM (Geometric Brownian Motion), in order for log S describes a Brownian motion, with a possible drift. Then some sortof diffusion equation shouldbe satisfiedby log S. Ãâà ¿Ãâà ½ From the terminal state of the system, the evolution of the system is backwards. Actually, the boundary condition is given as the terminal state, and the coefficient of @u is positive in equation 2.6 and in order to get the heat equation, we have to make @t the useofa substitutiontoreverse time. Since 17 2.4 Black-Scholes @u @u @u @u dy 1 @u = , == , (2.10) @s @t @S @y dx [emailà protected]/* */ and @2us 1 @u 1 @u 1 @2u =( )= + (2.11) @S2 @S [emailà protected]/* */ S2 @y S2 @y2 we then substitute in equation 2.6, which results in: @u 1 @u 1 #2 @2u 0= +(r #2)+ (2.12) @s 2 @y 2 @y2 Withrespect toy, the first partial derivative does not cancel because we didnÃâà ¿Ãâà ½t take into account the drift of the Brownian motion. In order to cancel the drift, the use of substitutions is made: z = y +(r 1 #2)#;p = s. (2.13) 2 Under the new coordinate system (z, #), we have the relations amongst vector fields: s @z = s @y , s @T = -(r 1 2 #2) s @y + s @s , (2.14) which leads to the following transformation of the equation 2.9: 0 = @u @r (r 1 2 #2) @u @z + 1 2 #2 @2u @z2; (2.15) or @u @r = 1 2 #2 @2u @z2 , u = u(#, z) (2.16) which is one form of the diffusion equation. The domain is on -8 z 8 and 18 2.4 Black-Scholes 0 = p = T ;and the initial condition is: ..rT (e u(0;z)= e z) := u0(z) (2.17) The original function f can berecoveredby rt 1 f(t, x)= eu(T t, log x +(r #2)#) (2.18) 2 The fundamental solution of the PDE in equation 2.13 is: 1 Z G. (Z)= v exp (2.19) 2#2# 2##2p and the solution u with the initial condition u0 is given by the convolution: ..rT . e(Z #)2 u(#, Z)= u0 * G. (Z)= v (e #) exp(-)d#. (2.20) 2#2# 2##2p . in terms of the original function f which is as follows: e..r. . (log x +(r 1 #2)p #2 2 f(t, S)= v (e . ) exp -d#. (2.21) 2#2# 2##2p . 19 2.4 Black-Scholes Numerical Experiment on Option Pricing The Black-Scholes Option Price Calculator (BetaVersion) is used to generate the Call Price and the Put Price that will be figure in the table below. The volatility rate is taken as 50 0.5 for , the interest is taken as 0.5 for 50 and theTimeTo Expirationis taken as1year 100 100 Table 2.2: Prices of Call and Put Option under varying Stock and Price Stock Price Strike Price Call Price Put Price 50 50 21.264 1.590 90 70 48.423 0.880 100 90 47.397 1.985 60 110 9.423 16.142 80 130 16.261 15.110 170 150 82.098 3.077 90 170 13.191 26.301 100 190 14.455 29.696 20 2.4 Black-Scholes 2.4.2 Shortcomings of the Black Scholes (1973) model In the year 1973, a turning point occurred in the evolution of trading of options, when the professors BlackScholes (1973) wrote the paper Ãâà ¿Ãâà ½Pricingof Options and Corporate Liabilities Ãâà ¿Ãâà ½. Based on the assumption that a risk-free rate of interest existed, this was viewed as a fundamental effort at expressing option pricing and corporate bonds. Thou it is used mostly in institutional portfolio management departments, it is still used today for predicting what options should be worth. Since its introduction in 1973, it has been been tested against the option miss-pricing, by many. The precision of the generated price of Black-Scholes depends very much on the accuracy of the parameter inputs, such as, time, interest rate, strike and exercise price are known precisely, and hence they are relatively accurate and easily determine. But, most individual traders have since long recognized that there are flaws in the mode l, in the following stated ways: 1. It was first published in 1973, when the trading of the public options was in its early stages. Puts were not publicly traded and calls were only available on a handful of listed companies. Furthermore, the population of the trading of options was extremely limited, which means that the assumptions used for the Black-Scholes model cannot be applied in the more complex modern options industry. 2. Dividends are uncalculated in the equation, which means that no dividends are applicable. Option traders know that dividends play a big role in returns and cannot be ignored. In the modern industry, anyone trading in options has to consider the impact of the dividend yield on the overall return. In comparing values of two or more underlying assets, dividend yield is often the determining factor in making the decision of which one 21 2.4 Black-Scholes has a better value. 3. Some of the assumptions are questionable under todayÃâà ¿Ãâà ½s market and economic conditions. For example, the model assumes that the income and valuation have to be compared to an assumed rate of risk free intere st. It is questionable if such a rate exists today. 4. The assumption of European style expiration (that is positions can be only exercised onthelast tradingday).Withafew exceptionsof some index options, mostofthe publicly traded options can be exercised at any time before expiration and thus this changes the calculation. So, the Black-Scholes model makes one assumption that is totally flawed. The assumption follows that the implied volatility on the analysis date willremain unchanged until expiration. Every trader knows that this is inaccurate. 5. Back then, the internet was not yet created. Without the ability to fragmentize numbers automatically and easily, the Black-Scholes model depended on calculations being made manually. With hundreds of more opt ions to trade and with more detailed, faster, and more w idely used formulas for the tracking of values, the entire options market is a different thing today than it was in 1973. Even the open levels of contracts have changed, increasing in billions since 1973 to a such a volume today that cannot be imagined in the past. This also directly affects valuation. The use of vega, gamma and delta are more reliable measurements of option pricing and implied volatility than the more unclear Black-Scholes model with its impractical vari ables. Black-Scholes contain numerous problems. Since its first publishment, more theories have been added to expand the Black-Scholes model in order to make it more applicable to the practical market conditions. Even so, its unlikely that an accurate market model will be produced in the near future. The Black-Scholes formula contains too many variables, and 22 2.5 The Jump Diffusion Model with the use of more variables, this results in a less reliable formula. These include the assumptio n of European expiration, lack of dividend, risk-free interest rate, and unchanging implied volatility. When one variable is used in the formula, it is rather troubling to a certain degree and when two or t hree variables are used, this increases the inaccuracy. The solution to the option pricing problem, should be restricted to studies of implied volatility and hence the volatility of the underlying , market conditions, and the closeness between strike of the option and current market value of stock, are the true factors that values an option. 2.5 The Jump Diffusion Model Afirst approach in further developing the basic Black and Scholes model adding the inclusion of jumps happens to be that of Merton (1976). The introduction of jumps in the Black and Scholes model has the implicatio n that the derivative prices are no longerresolvedby the principle of the absence of arbitrage only, this pricing problem was solved my Merton, following the assumption that t he jump risk was not systematic. But this was in later looked through a critical point of view, that such an assumption is equal to the the presenceofamarket portfolio,thatdoesnotpresentajumping behaviourandthat containsthe underlying asset.In empirical studies,itwas do cumentedthata combinationof stochastic volatility and jumps leads to better fits and enables to avoid the implied volatility skews. The models of stochastic volatility are teated elsewhere and hence the limitation is set to stochastic volatility on affiliation with the jump-diffusion modeling. This is also because empirical documentation gives the evidence for a jump-type action in the volatility and in the correlation between jumps in jumps in prices and volatility. Dueto some limitationsof the Black Scholes (1973) modelin the modelingof the 23 2.5 The Jump Diffusion Model distribution of logarithmic stock returns in considerable shorter periods, Merton (1976) improved the BlackScholes (1973) modelby adding the possibilityof jumps, which occurs correspondingtoaPoissonprocess, whichis independentfromtheBrownian motion. Dynamics of the stock prices in the Merton jump-diffusion model can be described by this equation: #t+#Bt+Xt St = S0 exp(2.22) where Xt isa compound Poissonprocess: Nt . Xt = Yi (2.23) i=1 Yi,i = 1,2,, are independent and identically distributed normal random variables. Nt is a Poisson process Processes Bt, Nt and variables Yt,i = 1,2, are independent. The assumption of the standardBlackScholes (1973) of log-normal stock diffusion with a constant volatility is, flawed, as we have already seen in the paper. In general, it is necessary to use different volatilities for different maturities (T) and option strikes (k), to equate the formula of BlackScholes (1973) with quoted prices of European calls and puts options. This event is most of the time referred to as the volatility smile or skew which depends on the figure of the mapping of implied volatility as of function ofTand K.Volatility skewispresentin all major stock index markets today. Usually, the steepness of the skew diminishes with the increasing option maturities. The presence of the skew is regularly associated with the fear of large downwardmarket movements. The extensions o f the Black Scholes (1973) model that capture the presence of the volatility smiles, can be grouped into three approaches. Firstly, it can be grouped in the stochastic volatility approach (Hull White 1987), in which, the stockÃâà ¿Ãâà ½s volatility is as 24 2.5 The Jump Diffusion Model sumedtobea meanrevertingdiffusionprocess, whichis usually correlatedwiththe stock process itself. A variety of volatility smiles and skews can be generated in this model, depending on the parameters and the correlation of the volatility process. It has been shown by empirical evidence from time-series analysis which confirms the presence of stochastic volatility in stock prices. However, often, unrealistically high negative correlation between volatilityand stock indexisrequired,inorderto cause implied Black-Scholes volatility skews in a stochastic volati lity that are uniform with those that are observed in traded options. Furthermore, while looking from a computationa l perspective, the models of stochastic volatility are not easy to handle as they are multi-factor models, which means that, an individual would nor mally need multi-dimensional lattices to evaluate, for example, American options. It has been noticed that stochastic volatility do not allow for absolute option hedging by dynamic positions in the money market account and in the stock. Firstly generated by Merton (1976), a new approach, generates volatility smiles and skews by adding discontinuous jumps to the Black-Scholes diffusion dynamics. By appropriately choosing the parameters of the jump process, a multitude of volatility skews and smiles can be generated by this s o-called jump diffusion model. Similar to stochastic volatility models, the jump-diffusion models are very challenging to handle numerically and this results in bonds and stocks forming an incomplete market. 2.5.1 The Black-Scholes vs the Jump-Diffusion model During the year 2011,in i ts second half,it was seen that financial marketsreacted strongly to the signs of the intensifying Eurozone crisis. During this disruptive time, the stock prices acted in a very volatile way, as a reaction to the inflow of all the information on the problems of debts of the various Eurozone members and even to the emergency solutions applied. In order to capture such a quick, sometimes discontinuous movements of 25 2.6 Finite Difference the stock prices, The jump-diffusion model of stock prices seems to be appropriate. The jump-diffusion model, on contrary to the classical Black-Scholes model, doesnÃâà ¿Ãâà ½t solve the normalityofthe logarithmicreturnsanditisusuallyfitsthe distributionofthe logarithmic returns in shorter periods, in a better way, compared to the Black-Scholes model. 2.6 Finite Difference The methods of finite difference (also known as finite element methods), for option pricing, are numerical methods that are used in mathematical finance to valuate options. Schwartz (1977) first applied Finite difference methods to option pricing. It is known that finite differences methods may solve problems of derivative pricing, and in general, as complex as those problems solved by the tree app roaches. Finite difference methods are usually applied only when other approaches proves to be inappropriate but at the same time, in terms of the number of underlying variables, this approach is limited, and as for problems with multiple dimensions, the Monte Carlo methods areusually preferred, for option pricing. Finite difference methods are used for the pricing of options by the approximation of the (continuous time) differential equations which describes the evolution of an option price through time by a set of (discrete-time) differential equations. To calculate the price of the option, the discrete differential equation can then be solved iteratively. The method of finite difference value a derivative by solving a differential equation that is satisfied by the derivative. The differential equation is first converter into a set of difference equations, and then the difference equations are solved iteratively (Hull White 1987) It is started from the Black-Scholes partial differential equation: @[emailà protected]/* */ +1=2#2 (2.24) 26 2.6 Finite Difference The methodsof finitedifferencecreatea mathematicalrelationshipthat connects every point on the solution domain, like a chain. From the first links, that are boundary conditions, it is discovered what every other point in the domain has to be. The most popular methods of finite difference used in computational finance are: Implicit Euler, Explicit Euler, and the Crank-Nicolson method. The use of these three methods has both advantages and disadvantages and easiest of which to implement is the Explicit Euler method. Crank-Nicolson and Implicit Euler are implicit methods, that generallyrequirea linear equation s system to be solved at each step of time, that can be intensive, computationally, on a fine network.Adisadvantage for the useof Explicit Euleris the unstability for certain choices of domain discretisation. The equation of BlackScholes (1973) has been used as the standardpricing formula fordifferenttypesofoptions.The assumptionsusedintheBlackScholes(1973) formula do not eternally hold and the original equation has been generalised to receive different types of options, which means that an exact solution for the BlackScholes (1973) equation cannot be always found and one must consequently resort to approximate methods, which are: 1. Monte Carlo and quasi Monte Carlo methods (Boyle 1977) 2. Reductionofthe equationtoasimplerform(Wilmott1994) 3. Reductionto other formsby meansof Fourier transforms(Carr1999) 4. Binomial and trinomial methods by Cox in 1985 Since each of mentioned methods contain disadvantages and advantages, one prefers to approximate the PDE that mod els the option prices by means of finite difference methods. The advantages of using finite difference methods are: 1. They have a sound mathematical and theoretical basis 2. They are easily programmed on a digital computer 27 2.7 Geometric Brownian Motion (GBM) 3. The different methods have a long history which goes back till the eighteenth century 4. The various finite difference methods are flexible and may be applied to many types of problems of pricing. The disadvantages of using the finite difference methods are: 1. Under certain circumstances, higher-order partial differential equations can degenerate into lower-order partial differential equations (with exponentially decaying volatilities or large factorsof driftin the B lackScholes (1973) equation) 2. It has been seen that a number of finite difference schemes are too complicated or elaborate. The numerical schemes that, in nature, are non-linear, while the equivalent partial dif ferential equations are linear and they deserve special attention since they can be Ãâà ¿Ãâà ½overkillÃâà ¿Ãâà ½ in oneÃâà ¿Ãâà ½s opinion. 3. New techniques are needed for proving the stability of schemes that approximate the partial differential equations that have nonlinear, non-constant and discontinuous coefficients. 2.7 Geometric Brownian Motion (GBM) AGeometric Brownian Motion which is also known as the exponential brownian motion is a time-continuous stochastic process where the logarithm of the quantity varying randomly follows a Brownian motion which is also called the Ãâà ¿Ãâà ½Wiener processÃâà ¿Ãâà ½ with drift. It is an important example of the stochastic processes satisfying the stochastic differential equation (SDE) and in particular, its use in mathematical finance is to model stock prices in the BlackScholes (1973) model. Many current engineering economic analyses have depended on an explicit or an im 28 2.7 Geometric Brownian Motion (GBM) plicit assumption that some quantity that changes with time with uncertainties that follow a GBM process. The GBM process, which also sometimes called a lognormal growth pro-cess,hasbeen acceptedbymanyasavalid modelforthegrowthinthepriceof stocks over time. Under this model, the formulaof BlackScholes (1973) for the pricingof European call and put options, even as their variations for some of the morecomplicated derivatives, provide simple analytical evaluation of asymmetric risks. Many recent examples of the GBM models have appeared in the analysis of real options, where the value of some underlying asset is assumed to be evolving like a stock price. The GBM assumption is stated exp licitly, in some cases. In other cases, when optionsare evaluatedbythe BlackScholes (1973) formula,theGBMis implicitly evaluated St,astochasticprocess,issaidto followaGBMifit satisfiesthe followingSDE (Stochastic Differential Equati on): dSt = #Stdt + #StdWt (2.25) where Wt isaÃâà ¿Ãâà ½WienerprocessÃâà ¿Ãâà ½orBrownian motionand #, the percentage drift and #, the percentage volatility, are both constants. Hypergeometric Function A generalized hypergeometric function pFq(a1, :::, ap; b1, :::, bq; x) is a function which may be defined in terms of a hypergeometric series, which means, a series for which the ratio of successive terms may be written as: Ck+1=Ck = P (k)=Q(k) = ((k+a1)(k+a2):::(k+ap)=(k+b1)(k+b2):::(k+bq)(k+1))x (2.26) In-the-money, At-the-money and Out-of-the-money 29 2.7 Geometric Brownian Motion (GBM) If the strike price is more than the market price of the underlying asset, a put option is in-the-money. Acall option is Ãâà ¿Ãâà ½in-the-moneyÃâà ¿Ãâà ½ if the market price of the underlying asset is greater than the strike price. An option is at-the-money when the strike price is equal to the price of the underlying security. If the market price of the underlying asset is less than the strike price, a call option is out-of-the-money. Aput option is out-of-the-money if the market price of the underlying security is greater than the strike price. Derivative A derivative is a security and its price depends on or derived from one or more underlying assets. The derivative is itself a mere contract between two or more parties. The valueof the derivativeis obtainedby fluctuatio nsin the underlying asset. Some examples of underlying assets are: bonds, stocks, commodities, market indices, interest rates and currencies. Most derivatives are characterized by high leverage. Security Asecurityisaninstrumentthatrepresents ownership (stocks),therightsto ownership (derivatives) ora debt agreement (bonds) Underlying asset An underlying asset is a term from derivatives trading. For example, in Microsoft stock option, Microsoft stock is the underlying asset. In case of gold options, gold is the underlying asset. Price movements of the underlying assets determine the price movement of options. Stochastic Volatility 30 2.7 Geometric Brownian Motion (GBM) Models of stochastic volatility areused in mathematical finance field for the evaluation of derivative securities, such as options. The name stochastic volatility is derives from the modelÃâà ¿Ãâà ½s treatment of the volatility of the underlying security as a random proc ess, which is governedby state variablessuchasthe tendencyof volatilitytorevertto somelong-run mean value, the price level ofthe underlying security, and the variance of the process of the volatility itself. Standardized futures contract Afutures contract is known to be a standardized contract between two parties to exchangea speci fied assetof standardized quantityand standardized qualityforapricethat is agreed today. Log-Return The advantage of looking at log return is that one can see relative changes in the variable and comparedirectly with other variables whose values may have very different base values Strike Price In options, the strike price, which is also known as the exercise price, is the fixed price at which the owner of the option can purchase, in case of a call option, or sell, in case of a put option, the underlying security or commodity. Characteristic Function The characteristic functionofareal-valued random variable definesits probabilitydensity function.Ifa random variableintroduceaprobability density function,thenthechar acteristic functionis the FourierTransformof theprobability density function. Wiener Process 31 2.7 Geometric Brownian Motion (GBM) Inthe worldof mathematics,theWienerprocessifatime-continuous stochasticprocess which is named in honor of NorbertWiener. It is often called the Brownian motion. Is is one of the best known stochastic process and occurs often in applied and pure mathematics, quantitative finance, economics and physics. Levy process Intheprobabilitytheory,theLevyprocess, whichis named afterthePaulLevy,aFrench mathematician, is a stochastic process with independent and stationary increments. A Levy process represents the motion of a point where its successive displacements are independent and random, and statistically identical over different time intervals of the same length. Systematic Risk In economics and finance, a system atic risk is the vulnerability to events which affects the aggregate outcomes such as total economy-wide resource holdings, market returns or aggregate income. Interest rates , wars and recession all represent sources of systematic risk because they affect the entire market and cannot be diversified to avoid the risk. The Poisson Process In the theory of probability, a Poisson process is a stochastic process that counts the numberof eventsandthe timesthat these events occurinagiven intervalof time.Theduration between each pair of consecutive events is known to have an exponential distribu tion with . as parameter and each of these inter-arrival times is assumed to be independent of the other inter-arrival times. Volatility Smile or Skew In the world of finance, a volatility smile is the pattern in which out-of-and in-themoney options areobserved to have bigger implied volatilities than at-the-money options. 32 2.7 Geometric Brownian Motion (GBM) Agraph of the strike price vs. the implied volatility for a given expiry will form an upturned curve, just like the shape of a smile. Figure 2.7:Volatility Smile 20. The Deterministic Model In mathematics,a deterministic modelisasystemin whichno randomnessis involved in the process of the development of the future states of the system and will thus always produce the same output from a given initial state or starting condition. Map Function (Mathematica) Mathematica.chas many powerful functions for working with lists. It is frequently desirable to map a function into each individual element in a list. While listable functions do this by default, one can use Map to do this with functions that cannot be listed. Discretisation In mathematics, discretisation infers the process of transferring continuous equations and models into discrete counterparts. 33 2.7 Geometric Brownian Motion (GBM) Explicit Euler, Implicit Euler, Crank-Nicolson method Explicit Euler involves the calculation of the state of a system at a later point in time, from the state of the system at the actual time. Implicit euler, derivesa solution,by solving an equation that involves both the current state of the system and the later one. The Crank-Nicolson methodisafinitedifference methodthatisusedforthe numerical solving of partial differential equations and it s second order in time, and is numerically stable. The Log-normal distribution Alog-normal distributionisacontinuousprobability distributionofarandom variable whe reits logarithm is normally distributed. For example, if X isarandom variable following a normal distribution, then Y = exp(X) contains a log-normal distribution. Similarly, if now Y is a random variable following a normal distribution, then X = log(Y ) has a normal distribution. Therefore, the log-normal distribution, is a distribution of random variable which takes only real values that are positive. 34 Chapter 3 Mean Reversion Model In the history of commodity pricing, the most common way is to model the logarithmic price through a mean-reverting process (Buhler 2009). Similar to the model of BlackScholes-Merton, the process of mean-reversion is based on the exponential treatment of the stochastic spot price (Merton 1976) (BlackScholes 1973). If for example, these models are used for electricity, they may catch the mean-reversion of electricity prices, but they will not be able to account for non-negligible and huge observed spikes in the market. It is necessaryto extendtheBlackScholes(1973)modelbyajump component,tobeableto catch the behavior of spikes of the electricity spot price dynamics. This model was applied to the English andWelsh electricity marketby CarteaFigueroa (2005) and findsit gives aprope r adjustments to the abnormalities of the electricity markets. RoncoroniGeman (2006) has discussed and tried to try to fix the deficiency of this model, that is to say that it uses only one unrealistically high mean-reversion rate, both for the jump process and for the diffusion. Nevertheless, a single rate of mean-reversion for these two visible features only has limited use because the price of elasticity does not exhibit classical jumps but instead exhibit spikes and these spikes have the tendency to revert fast, which leads ti a high rate of mean-reversion following a spike . The mean-reversion rate is in fact much lower, during 35 normal times. As a consequence, the use of a single mean-reversion factor causes a too slowremovalof intenseprice movements (spikes)andalsoatoorapidreturntoa seasonal trend of periods without intense events. Asolution exists. This problem can be solved by the separation of the mean-reversion factors for the Ãâà ¿Ãâà ½no rmalÃâà ¿Ãâà ½ and the Ãâà ¿Ãâà ½extremeÃâà ¿Ãâà ½ process. An applicable approach for this purpose was described by Benth (2005) where he predicts the parameters for the diffusion process taken from historical data and considers a constant volatility over time. But this approach resulted in several drawbacks. Firstly, the spike processÃâà ¿Ãâà ½s parameters are not estimated from the time series, but are based on the opinions of expert. Secondly, this approach has neglected the fact that the volatility in the electricity markets is stochastic over time. Deng (2006) then compares Merton (1976) Jump-Diffusion model with the stochastic volatility and constant and derives prices for the dissimilar energy derivatives using Fourier transform and hence shows that the stochastic volatility is important. Escribano et al. (Villaplana 2003) supply huge empirical tests on an ample range of markets and then makes the conclusion that it is important to include stochastic volatility and jumps. The model of an asset follows a mean reversion process if the prices of assets tend to fall after hitting a maximum. Similarly, the price will rise after hitting a minimum. Let us consider a deterministic model, in which, cash and world stocks must have identical returns and the cash rates must deterministically follow the existing current path of forward interest rates. Everyone can know that stockreturns or interest rates havereachedalow or high point without breaching the unimportant market and arbitrage free conditions. This could be consequently viewed as a form of mean reversion, if the current forwardinterest rate curve is smoothly downward or upwardsloping. Mean-Reverting Stochastic Process dSt = a(L St)dt +stochastictermÃâà ¿Ãâà ½ (3.1) 36 The mean-reversion stochastic process has a drift term that takes the variable being modeled back to the equilibrium level. The result at the end is that the variable will have the tendency to oscillate around this equilibrium point and each time the Ãâà ¿Ãâà ½stochastic termÃâà ¿Ãâà ½ pushes the variable away from the equilibrium level, the deterministic term will act in a way such that the variable will go back to the equilibrium level. The stochastic term is #t St dWt where #t is a volatility (standarddeviation), # 0, the constantListhe Ãâà ¿Ãâà ½long-termmeanÃâà ¿Ãâà ½oftheprocess,towhichitrevertsinsometime, a 0 is a measurementof the strengthof meanreversion and Wt isa standardWienerprocess, v Wt = N(0;t) (3.2) Lets consideranaturalgascalloptionthatfallsand becomes worthlessincasetheprice of natural gas increases above a certain price at anytime during the lifetime of the option. The use of the process of a Geometric Brownian Motion (GBM) price to model natural gas prices gives such price paths that as a result, gives a much higher probability of ending up to the barrier level during the life of the option, than a mean reverting process does. The option pricing models that involves the use of a mean reverting process ensures that prices is drawn towards the mean reversion level, which assigns less chance of touching the barrier during the option life. The graphs below shows simulated paths of price and a resulting histogram for for example, natural gas, using Geometric Brownian Motion vs. Geometric Brownian Motion with mean reversion. The greater prices that are produced by the GBM method can be seen, clearly. In this example, both proce sses of price produce the same result for a European exercise option, but awfully dissimilar option prices for a barrier option. 37 Figure 3.1: Geometric Brownian Motion: Sample Price Paths Figure 3.2: GeometricBrownian MotionWith Mean Reversion: Sample Price Paths 38 Drawback of the Mean-Reverting Model 1. L, the long-term mean, stays fixed over time: It needs to be readjusted on a continuous basis, to ensure that the curves resulting are mar
How to Prepare For the MSNally Writing Camp College Essay Competition
<h1>How to Prepare For the MSNally Writing Camp College Essay Competition</h1><p>The MSNally Writing Camp College Essay rivalry is an open door for secondary school seniors to win a free grant to MSNally Writing Camp. However, the incredible news is that the opposition isn't just for school seniors; it's available to secondary school understudies and youngsters and sophomores, as well. The challenge expects members to compose a paper on a particular point, whose subject is indicated by the challenge coordinators. The champ will be picked by a board of judges who will choose one victor from a board of three.</p><p></p><p>Every competitor is offered six to about two months to compose the paper, after which the individual will have fourteen days to react to addresses presented by the challenge coordinators. The challenge is intended to give understudies the important abilities to prevail in school, just as the nuts and bolts to realize how to pa rticipate in challenges when all is said in done. Challenge members will likewise figure out how to utilize their composing abilities without limit and be urged to move toward each circumstance in their composition with a one of a kind purpose of view.</p><p></p><p>The first inquiry a challenge member should pose to himself is, 'the thing that would I like to achieve?' You might need to read for tests or simply get an incredible evaluation in school. There are loads of ways you can achieve both of these things, yet on the off chance that you need to truly exceed expectations throughout everyday life, you have to consider what you need to do with your life later on. School affirmations officials are looking for understudies who will be effective in the realm of school, so you should think about this when you are getting ready for the MSNally Writing Camp article contest.</p><p></p><p>The second inquiry to pose to yourself is, 'the thing that do I need to state about the subject of my MSNally Writing Camp paper?' If you need to work admirably with your exposition, you should ensure that you genuinely care about the point you are expounding on. There is nothing of the sort as a 'conventional' school paper on the grounds that, at long last, you are expounding on yourself, so you have to invest the most ideal energy to make yourself sound progressively like you, instead of trying to say what every other person says.</p><p></p><p>The third inquiry you have to pose to yourself is, 'by what means will I utilize my composing aptitudes to address the issues of the opposition?' Because the motivation behind the MSNally Writing Camp is to assist understudies with getting into the best universities, you have to remember that the better your article is, the almost certain you are to be acknowledged into a lofty school. Expound on the things that will make you stand apart from the various papers you will find in school applications, just as the exercises you will gain from the composing process.</p><p></p><p>The last advance in planning is to ensure that you get precisely what you are expecting out of the experience. All things considered, this is a grant challenge, and on the off chance that you can't offer your crowd what they are expecting, at that point you won't get much of anywhere. Give your paper sufficient opportunity to compose, yet on the off chance that you don't get directly back to it, proceed onward to the following one and continue stretching yourself as far as possible until you are satisfied.</p><p></p><p>This challenge is available to anybody, yet the most ideal approach to do well is to begin getting ready for it when you realize you need to enter the composing camp. To get ready, you should get familiar with the nuts and bolts about how to compose a paper all in all. Be that as it may, on the off chance that you a re happy to place in the work and put forth the additional attempt required, you'll be astonished at how rapidly you can be en route to turning into an effective understudy in college.</p>
Essay Research Topics - The Top 5 Key Points
<h1>Essay Research Topics - The Top 5 Key Points</h1><p>In request to assist you with your paper look into themes, I'm going to give you a few hints. You don't need to go through hours scouring the Internet looking for data on this theme, yet you ought to in any event keep these focuses in mind.</p><p></p><p>First of all, what you are exploring is as significant as what you are expounding on. As it were, on the off chance that you're composing an exposition that is about existence, at that point this kind of research isn't only an exercise in futility, it can likewise be exceptionally hazardous. Be careful!</p><p></p><p>Another significant point is to truly explore what the theme is about. In the event that you don't have the foggiest idea what the subject is about, the odds are generally excellent that you will compose something that won't be perused by anybody. On the off chance that you can discover increasingly abo ut what the theme is, at that point you will be in a superior situation to compose a genuine show-stopper. You have to understand that examination is the way to getting the correct thoughts into your text.</p><p></p><p>Keep as a main priority that the more you do this sort of research, the more cash you will spend. Truly, you can compose an article in pretty much any timeframe, however what you need to do is compose a paper that will stand apart from the group. You need individuals to see the work and observe it since this will assist you with improving evaluations on your school applications.</p><p></p><p>So what does this mean for you? All things considered, in case you're composing a paper, you are expounding on yourself. On the off chance that you are composing a class paper, you are expounding on the class you're taking.</p><p></p><p>In the two cases, you have to ensure that you are concentrating on what yo u are expounding on. This can imply that you should do some exploration, however you have to ensure thatit is centered around your specific subject. I can't reveal to you what number of articles I've seen that were not centered around their subject at all.</p><p></p><p>There are a wide range of paper explore themes, so ensure that you know about the different things that you can do. There are a lot of spots online that you can go to get more data, yet I would suggest that you start with your secondary school history books.</p>
Tuesday, May 12, 2020
Creating Your Research Paper Topic
<h1>Creating Your Research Paper Topic</h1><p>List inquire about paper themes are numerous and changed. Before picking a theme you should decide precisely what it is that you have to inquire about. In the event that your theme is, for instance, an unnatural weather change book, at that point the examination can be very nitty gritty. In any case, if your theme is something progressively broad like another infant or another home you may have the option to finish your exploration much quicker.</p><p></p><p>There are numerous arrangements of rundown inquire about paper subjects and these are in no way, shape or form comprehensive. When you have a waitlist of potential points you should pick which one best suits you. To do this you should research and take a gander at the structure of every point, as it were what ought to be remembered for the paper. On the off chance that the material is excessively dispersed and has no sense, you may wind up att empting to compose the paper.</p><p></p><p>The assignment of looking into list inquire about paper subjects can appear to be overwhelming from the start however once you start you will have the option to begin composing and keep at it. It is critical to require some investment to record a rundown of inquiries to yourself as you take a shot at your paper. This will assist you with centering your exploration and guarantee that you don't dismiss what you have to do.</p><p></p><p>Once you have concocted a rundown of research paper themes, you would then be able to work out an unpleasant blueprint of what you will cover in the paper. On the off chance that you feel a specific point is troublesome, at that point to consider composing an abstract or synopsis of the subject. You ought to likewise consider what focuses you will make and how you will convey these focuses in your paper.</p><p></p><p>A significant piece of picking list look into paper points is settling on the subject you need to explore. You should consider what you need to accomplish with the paper and what question you will inquire. By contemplating these things you will have the option to make an alternate point each time you choose to compose a paper.</p><p></p><p>List look into paper themes can likewise be composed utilizing records. For instance, in the event that you need to take a gander at the effect of YouTube on the idea of the media business then you could list all the things YouTube does - films, music, computer games, etc. By recording the primary highlights and afterward orchestrating them all together you will before long have the option to respond to the inquiry such that individuals can identify with. This is a simple method to inquire about a point and it will be amusing to compose about.</p><p></p><p>Of course, when picking list explore paper subjects you will need t o pick the one that you appreciate doing the most. Attempt to concentrate on the point that you know the most about and will appreciate expounding on. By investigating a point that you are learned about and appreciate expounding on you will be bound to succeed.</p><p></p><p>In determination, there are a variety of sorts of subjects that you can explore. From movement, youngsters and pets to business and diversion. It is critical to pick one that you appreciate and that you think can be inquired about effectively and will give you intriguing results.</p>
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