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We introduce a stochastic volatility model with self-exciting jump intensity to capture the change in pricing dynamic …
Persistent link: https://www.econbiz.de/10013088630
We employ a refined tree method to value employee stock options (ESOs) in the stochastic volatility model of Heston … valuation, personal market beliefs and stochastic volatility. We formulate theoretical results on ESO valuation independently of …
Persistent link: https://www.econbiz.de/10013088792
implied volatility model. Compared to benchmark delta-normal method, the model produces more accurate results by taking into … account nonlinearity, passage of time, non-normality and changing of implied volatility. Two parameters in the model: the … correlation between underlying and the at-the-money implied volatility and the volatility of percentage change of the at …
Persistent link: https://www.econbiz.de/10013090202
This note identifies a gap in the proof of Corollary 2.4 in [2], which arises because the essential smoothness of the family (Xt/t) can fail for the log-spot process X in the Heston model, and describes how to circumvent the issue by applying a standard argument from large deviation theory
Persistent link: https://www.econbiz.de/10013092673
volatility level. Single-factor stochastic volatility models are not flexible enough to account for the stochastic behavior of … the skew. On the other hand, multifactor stochastic volatility models are able to account for the existence of stochastic … that the consideration of additional volatility factors in the context of stochastic volatility models allows us to …
Persistent link: https://www.econbiz.de/10013064470
Volatility products have become popular in the past 15 years as a hedge against market uncertainty. In particular …, there is growing interest in options on the VIX volatility index. A number of recent empirical studies examine whether there … proposing and analyzing a stochastic volatility model with regime switching. The basic Heston model cannot capture VIX implied …
Persistent link: https://www.econbiz.de/10013065213
contingent claims. Our method is applicable to widely used option pricing models such as local volatility models, stochastic … volatility models, and their combinations. This method is useful in practice since the resulting approximation formula is not … approximation remains quite high even for the long maturity and/or the high volatility cases, which is a desired feature. As an …
Persistent link: https://www.econbiz.de/10013065498
We introduce a refined tree method to compute option prices using the stochastic volatility model of Heston. In a first …
Persistent link: https://www.econbiz.de/10013068353
In this paper, we present an efficient approach to compute the first and the second order price sensitivities in the Heston model using the algorithmic differentiation approach. Issues related to the applicability of the pathwise method are discussed in this paper as most existing numerical...
Persistent link: https://www.econbiz.de/10013068956
We construct multi-currency models with stochastic volatility and correlated stochastic interest rates with a full … interest rate by a stochastic volatility displaced-diffusion Libor Market Model [AA02], which can model an interest rate smile …
Persistent link: https://www.econbiz.de/10013069789