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Pricing and Hedging Derivative Securities with Unknown Local Volatilities

Kerry W. Fendick

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Abstract: A common assumption in financial engineering is that the market price for any derivative coincides with an objectively defined risk-neutral price - a plausible assumption only if traders collectively possess objective knowledge about the price dynamics of the underlying security over short time scales. Here we assume that traders have an objective knowledge about the underlying security's price trajectories only for large time scales. We show that avoidance of arbitrage that is still feasible uniquely determines the prices of options with large expiration times, and we derive limit theorems useful for estimation of model parameters and present-value analysis of derivative portfolios.

New Economics Papers: this item is included in nep-mst and nep-rmg
Date: 2013-09, Revised 2013-10
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Handle: RePEc:arx:papers:1309.6164