Download Analytically Tractable Stochastic Stock Price Models by Archil Gulisashvili PDF

By Archil Gulisashvili

Asymptotic research of stochastic inventory expense types is the principal subject of the current quantity. exact examples of such types are stochastic volatility versions, which were built as a solution to convinced imperfections in a celebrated Black-Scholes version of alternative pricing. In a inventory expense version with stochastic volatility, the random habit of the volatility is defined via a stochastic technique. for example, within the Hull-White version the volatility procedure is a geometrical Brownian movement, the Stein-Stein version makes use of an Ornstein-Uhlenbeck approach because the stochastic volatility, and within the Heston version a Cox-Ingersoll-Ross approach governs the habit of the volatility. one of many author's major objectives is to supply sharp asymptotic formulation with errors estimates for distribution densities of inventory costs, choice pricing services, and implied volatilities in a number of stochastic volatility versions. the writer additionally establishes sharp asymptotic formulation for the implied volatility at severe moves as a rule stochastic inventory expense versions. the current quantity is addressed to researchers and graduate scholars operating within the quarter of economic arithmetic, research, or chance concept. The reader is anticipated to be conversant in parts of classical research, stochastic research and chance conception.

Show description

Read or Download Analytically Tractable Stochastic Stock Price Models PDF

Similar game theory books

The determinacy of long games

Neeman stocks his learn into proofs of determinacy for video games of countable size, for readers with a data of simple set idea, and a few familiarity with Silver indiscernibles and extenders and generation trees-all at a graduate point. He covers the fundamental parts, video games of fastened countable size, video games of constantly coded size, pullbacks, while either avid gamers lose, alongside a unmarried department, and video games that extend neighborhood cardinals.

Applied Game Theory and Strategic Behavior

Precious instruments to assist remedy determination Making difficulties utilized video game concept and Strategic habit demonstrates using numerous video game concept thoughts to handle useful company, monetary, felony, and public coverage concerns. It additionally illustrates some great benefits of using strategic considering that comes with the uncertainty surrounding the habit of different events.

Paris-Princeton Lectures on Mathematical Finance 2004

The Paris-Princeton Lectures in monetary arithmetic, of which this is often the 3rd quantity, will, on an annual foundation, put up state-of-the-art examine in self-contained, expository articles from extraordinary - confirmed or upcoming! - experts. the purpose is to provide a sequence of articles which can function an introductory reference for examine within the box.

Extra info for Analytically Tractable Stochastic Stock Price Models

Example text

Let (Ω, F) be a measurable space and let Xt , t ≥ 0, be an Rd -valued stochastic process on Ω. For a topological space H denote by B(H ) the Borel σ -algebra of subsets of H . 42 The stochastic process X is called measurable if the mapping (t, ω) → Xt (ω) from [0, ∞) × Ω into Rd is B ⊗ F/B(R d )-measurable. 43 Let (Ω, F, {Ft }) be a measure space equipped with the filtration {Ft }, and let Xt , t ≥ 0, be an Rd -valued stochastic process on Ω. The process X is called progressively measurable with respect to the filtration {Ft } if for every t ≥ 0, the mapping (t, ω) → Xt (ω) from [0, t] × Ω into Rd is B([0, t]) ⊗ Ft /B(Rd )measurable.

T (y) = χ 2 t t t It will be established next that similar equalities hold for nonintegral dimensions. 33 (a) Let δ > 0. Then the marginal distribution μt of the process BESQδ0 admits a density ρt given by ρt (y) = 1 (2t) δ 2 y y 2 −1 e− 2t 1{y≥0} . 48) (b) Let δ > 0 and y0 > 0. Then the marginal distribution μt of the process BESQδy0 admits a density ρt given by 1 ρt (y) = 2t y y0 δ 1 4−2 e − y+y0 2t I δ −1 2 √ y0 y 1{y≥0} . 12 Laplace Transforms of Marginal Distributions 23 (c) Let y0 > 0. 50) for all Borel sets A in R.

Then Itô’s formula gives dTt = σ 2 − 2qTt dt + 2σ Yt dZt . It can be shown, using Lévy’s characterization theorem, that the process Z defined by d Zt = sign(Yt ) dZt is a standard Brownian motion. Therefore dTt = σ 2 − 2qTt dt + 2σ Tt d Zt , and it follows that the process Yt (q, 0, σ, y0 )2 has the same law as the CIR process Yt (σ 2 , 2q, 2σ, y02 ). 17) implies that for every m and t > 0 the random variables Yt (q, m, σ, y0 )2 and Yt σ 2 , 2q, 2σ, y0 + eqt − 1 m 2 are equally distributed. 17 Notes and References • The reader can consult [Kah97, Kah98, Kah06, Dup06], Chaps.

Download PDF sample

Rated 4.28 of 5 – based on 7 votes