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virtually any stochastic volatility model model can be approximated arbitrarily well by a carefully chosen continuous time … illustrates these contributions of the paper, estimating a stochastic volatility jump diffusion model. …
Persistent link: https://www.econbiz.de/10010284206
This paper presents a new numerical method for pricing American call options when the volatility of the price of the … volatility changes, we derive an integral representation of an American call price and the early exercise premium which holds … under stochastic volatility. This representation is used to develop a numerical method for pricing the American options …
Persistent link: https://www.econbiz.de/10010284217
The 1987 market crash was associated with a dramatic and permanent steepening of the implied volatility curve for …
Persistent link: https://www.econbiz.de/10010292171
volatility and risk aversion that are similar to the ones observed in the data. In addition, the model produces an implied …
Persistent link: https://www.econbiz.de/10005858509
This paper investigates the pricing bias in the Swedish OMX-Index Option market and how a stochastic volatility affects …-root process for the volatility is estimated with non-linear least square minimization, and stochastic volatility option prices are … prices, and a well-defined bias structure between Stochastic Volatility prices and Black-Scholes prices is observed. With a …
Persistent link: https://www.econbiz.de/10013208410
span the volatility risk, an investor increases her investment in theunderlying stock. In addition, the investors indirect … utility increases significantly when allowed to span the volatility risk using variance swap contracts. …
Persistent link: https://www.econbiz.de/10005858375
stochastic volatility or jumps in consumption process. Such a framework can reasonably match the mean variance premium as well as … the mean equity premium, equity volatility, and the mean risk-free rate in the data. We find that about 96 percent of the …
Persistent link: https://www.econbiz.de/10012030280
I generalize the long-run risks (LRR) model of Bansal and Yaron (2004) by incorporating recursive smooth ambiguity aversion preferences from Klibanoff et al. (2005, 2009) and time-varying ambiguity. Relative to the Bansal-Yaron model, the generalized LRR model is as tractable but more flexible...
Persistent link: https://www.econbiz.de/10012818998
Financial models are largely used in option pricing. These physical models capture several salient features of asset price dynamics. The pricing performance can be significantly enhanced when they are combined with nonparametric learning approaches, that empirically learn and correct pricing...
Persistent link: https://www.econbiz.de/10005858326
In this article, we describe the various sorts of American Parisian options and propose valuation formulae. Although there is no closed-form valuation for these products in the non perpetual case, we have been able to reformulate their price as a function of the exercise frontier. In the...
Persistent link: https://www.econbiz.de/10005858581