“…Xs ]: we recover the proposition 2.0.40 in Lennox (2011), see also corollary 5.9 in Craddock and Lennox (2009) and proposition 5.4.3. in Baldeaux and Platen (2013), p. 154, that is,…”
Section: Appendix Amentioning
confidence: 98%
“…Recently Baldeaux () implemented the Broadie and Kaya () algorithm to the exact simulation of the 3/2 model. This is possible because the Laplace transform of the integral of the inverse of a CIR process conditional to the terminal value of the process is known in closed form (see, e.g., Baldeaux and Platen , theorem 6.4.1).…”
Section: Exact Simulation Of the 4/2 Modelmentioning
confidence: 99%
“…ds Xs ]: we recover the theorem 5.10 in Craddock and Lennox (2009) (where we corrected as before the typo √ Axy → √ Ax/y in the first term of their proof, see also ch. 5.8), see also proposition 5.4.4. in Baldeaux and Platen (2013), p. 155 (for a Bessel process of dimension n). r μ = 0 or ν = 0: we get new explicit formulas for the transforms resp.…”
We introduce a new stochastic volatility model that includes, as special instances, the Heston (1993) and the 3/2 model of Heston (1997) and Platen (1997). Our model exhibits important features: first, instantaneous volatility can be uniformly bounded away from zero, and second, our model is mathematically and computationally tractable, thereby enabling an efficient pricing procedure. This called for using the Lie symmetries theory for partial differential equations; doing so allowed us to extend known results on Bessel processes. Finally, we provide an exact simulation scheme for the model, which is useful for numerical applications.
“…Xs ]: we recover the proposition 2.0.40 in Lennox (2011), see also corollary 5.9 in Craddock and Lennox (2009) and proposition 5.4.3. in Baldeaux and Platen (2013), p. 154, that is,…”
Section: Appendix Amentioning
confidence: 98%
“…Recently Baldeaux () implemented the Broadie and Kaya () algorithm to the exact simulation of the 3/2 model. This is possible because the Laplace transform of the integral of the inverse of a CIR process conditional to the terminal value of the process is known in closed form (see, e.g., Baldeaux and Platen , theorem 6.4.1).…”
Section: Exact Simulation Of the 4/2 Modelmentioning
confidence: 99%
“…ds Xs ]: we recover the theorem 5.10 in Craddock and Lennox (2009) (where we corrected as before the typo √ Axy → √ Ax/y in the first term of their proof, see also ch. 5.8), see also proposition 5.4.4. in Baldeaux and Platen (2013), p. 155 (for a Bessel process of dimension n). r μ = 0 or ν = 0: we get new explicit formulas for the transforms resp.…”
We introduce a new stochastic volatility model that includes, as special instances, the Heston (1993) and the 3/2 model of Heston (1997) and Platen (1997). Our model exhibits important features: first, instantaneous volatility can be uniformly bounded away from zero, and second, our model is mathematically and computationally tractable, thereby enabling an efficient pricing procedure. This called for using the Lie symmetries theory for partial differential equations; doing so allowed us to extend known results on Bessel processes. Finally, we provide an exact simulation scheme for the model, which is useful for numerical applications.
“…Then for each T ∈ R ++ and n ∈ N, the random matrices Γ (1) T,n and Γ (2) T,n are invertible almost surely, and hence there exists a unique CLSE c T,n , d T,n , δ T,n , ε T,n , ζ T,n of (c, d, δ, ε, ζ) taking the form given in (3.5).…”
Section: Clse Based On Continuous Time Observationsmentioning
We study asymptotic properties of conditional least squares estimators for the drift parameters of two-factor affine diffusions based on continuous time observations. We distinguish three cases: subcritical, critical and supercritical. For all the drift parameters, in the subcritical and supercritical cases, asymptotic normality and asymptotic mixed normality is proved, while in the critical case, non-standard asymptotic behavior is described.
“…They find only limited reference to scientific papers or current research issues such as in the seminal book by [5] on Brownian Motion and Stochastic Calculus. Moreover, he mainly introduces standard theories and does not take into account new developments in probability theory or related fields, such as Lie algebra [6]. All in all, the positive impression outweighs.…”
This paper is a commentary on the book 'Probability and Stochastic Processes' from Ionut Florescu. The book is an excellent introduction to both probability theory and stochastic processes. It provides a comprehensive discussion of the main statistical concepts including the theorems and proofs. The introduction to probability theory is easy accessible and a perfect starting point for undergraduate students even with majors in other subjects than science, such as business or engineering. The book is also up-to-date because it includes programming code for simulations. However, the book has some weaknesses. It is less convincing in more advanced topics of stochastic theory and it does not include solutions to excises and recent research trends.
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