Option pricing bounds in an a α stable security market

Abstract
This article considers the problem of pricing options in a market where the underlying process is assumed to be driven by a Lúvy α-stable motion, which includes, as a special case, the Gaussian “geometric Wiener process” . With finite trading opportunities, to obtain pricing models requires very specific preference restrictions. Rather than place such assumptions on investor behavior, we give up exact pricing, and bound option prices under stochastic dominance type restrictions. The bounds are investigated for differing degrees of leptokurtosis in the distribution of stock returns. In addition, their behavior is explored as the trading frequency increases. The resulting pricing relationships allow us to obtain insight which may explain the volatility smile effect

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