Summary
In this paper we study the hedging of derivatives in illiquid markets. More specifically we consider a model where the implementation of a hedging strategy affects the price of the underlying security. Following earlier work we characterize perfect hedging strategies by a nonlinear version of the Black-Scholes PDE. The core of the paper consists of a simulation study. We present numerical results on the impact of market illiquidity on hedge cost and Greeks of derivatives. We go on and offer a new explanation of the smile pattern of implied volatility related to the lack of market liquidity. Finally we present simulations on the performance of different hedging strategies in illiquid markets.
Research of the second author was supported by Credit Suisse Group, Swiss Re and UBS AG through RiskLab, Switzerland and by the Swiss Banking Institute, University of Zurich.
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Frey, R., Patie, P. (2002). Risk Management for Derivatives in Illiquid Markets: A Simulation Study. In: Sandmann, K., Schönbucher, P.J. (eds) Advances in Finance and Stochastics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-04790-3_8
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DOI: https://doi.org/10.1007/978-3-662-04790-3_8
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