“…Bates [8] introduced jumps of the asset price into the Heston model with the goal of explaining the volatility smile. The model was tested on real data in Bakshi et al [4], but did not perform well enough, and the authors called for a model with jumps in the volatility as well. An affine model with jumps in the volatility was proposed by Duffie et al [13].…”
Many risk-neutral pricing problems proposed in the finance literature do not admit closed-form expressions and have to be dealt with by solving the corresponding partial integro-differential equation. Often, these PIDEs have singular diffusion matrices and coefficients that are not Lipschitz-continuous up to the boundary. In addition, in general, boundary conditions are not specified. In this paper, we prove existence and uniqueness of (continuous) viscosity solutions for linear PIDEs with all the above features, under a Lyapunov-type condition. Our results apply to European and Asian option pricing, in jump-diffusion stochastic volatility and path-dependent volatility models. We verify our Lyapunov-type condition in several examples, including the arithmetic Asian option in the Heston model.
“…Bates [8] introduced jumps of the asset price into the Heston model with the goal of explaining the volatility smile. The model was tested on real data in Bakshi et al [4], but did not perform well enough, and the authors called for a model with jumps in the volatility as well. An affine model with jumps in the volatility was proposed by Duffie et al [13].…”
Many risk-neutral pricing problems proposed in the finance literature do not admit closed-form expressions and have to be dealt with by solving the corresponding partial integro-differential equation. Often, these PIDEs have singular diffusion matrices and coefficients that are not Lipschitz-continuous up to the boundary. In addition, in general, boundary conditions are not specified. In this paper, we prove existence and uniqueness of (continuous) viscosity solutions for linear PIDEs with all the above features, under a Lyapunov-type condition. Our results apply to European and Asian option pricing, in jump-diffusion stochastic volatility and path-dependent volatility models. We verify our Lyapunov-type condition in several examples, including the arithmetic Asian option in the Heston model.
“…In a comprehensive study based on S&P 500 data, (Bakshi et al 1997) compare a number of popular alternative models and conclude that overall, stochastic volatility models appear to provide the main source of option pricing improvement when considering various combinations of stochastic volatility with stochastic interest rates and stochastic jumps.…”
Section: Introductionmentioning
confidence: 99%
“…For example, Bakshi et al (1997) use cross-sectional information contained in option prices with different maturities and strike prices resulting in implied volatilities in order to infer estimates for the structural parameters of the stochastic volatility model. On the other hand, it appears that these implied structural parameters deviate substantially from their time-series counterparts (e.g., (Bakshi et al 1997) use implied volatilities to estimate the correlation coefficient of the asset return innovation with that of its stochastic volatility as 0.76 whereas their estimate based on the underlying asset time-series is 0.23.)…”
Section: Introductionmentioning
confidence: 99%
“…For example, Bakshi et al (1997) use cross-sectional information contained in option prices with different maturities and strike prices resulting in implied volatilities in order to infer estimates for the structural parameters of the stochastic volatility model. On the other hand, it appears that these implied structural parameters deviate substantially from their time-series counterparts (e.g., (Bakshi et al 1997) use implied volatilities to estimate the correlation coefficient of the asset return innovation with that of its stochastic volatility as 0.76 whereas their estimate based on the underlying asset time-series is 0.23.) As an alternative, (Zhang and Shu 2003) proposed to use a two-step procedure to estimate first, via the indirect inference method of Gourieroux et al (1993), structural parameters for the underlying asset, followed by a second set of additional parameters needed for option pricing via a market price calibration based on least-squares.…”
“…Empirical work suggests that a more realistic model would include both stochastic volatility and a jump component. For example, Bates (1996) and Bakshi et al (1997) have analysed such models and their results indicate that models with both stochastic volatility and jump diffusion provide a better fit to the empirical observations than data based on deterministic volatility. Andersen and Andersen (1999) note that models with both stochastic volatility and jump diffusion are not easy to work with in practical applications.…”
It is well established that the standard Black-Scholes model does a very poor job in matching the prices of vanilla European options. The implied volatility varies by both time to maturity and by the moneyness of the option. One approach to this problem is to use the market option prices to back out a local volatility function that reproduces the market prices. Since option price observations are only available for a limited set of maturities and strike prices, most algorithms require a smoothing technique to implement this approach. In this paper we modify the implementation of Andersen and Brotherton-Ratcliffe to provide another way of dealing with this issue. Numerical examples indicate that our approach is reasonably successful in reproducing the input prices.
Mathematics Subject Classification (2000): 91B28Journal of Economic Literature Classification: C61, C63
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