This paper examines alternative methods for pricing options when the underlying security volatility is stochastic. We show that when there is no correlation between innovations in security price and volatility, the characteristic function of the average variance of the price process plays a pivotal role. It may be used to simplify Fourier option pricing techniques and to implement simple power series methods. We compare these methods for the alternative mean-reverting stochastic volatility models introduced by Stein and Stein (1991) and Heston (1993). We also examine the biases in the Black-Scholes model that are eliminated by allowing for stochastic volatility, and we correct some errors in the Stein and Stein (1991) analysis of this issue.
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Volume (Year): 29 (1994) Issue (Month): 04 (December) Pages: 589-607 Download reference. The following formats are available: HTML
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Robert F. Engle & Joshua V. Rosenberg, 1995.
"GARCH Gamma,"
NBER Working Papers
5128, National Bureau of Economic Research, Inc.
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