Superreplication of Financial Derivatives via Convex Programming

Nabil Kahalé ()
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Nabil Kahalé: ESCP Europe and LabEx RéFi, 75011 Paris, France

Management Science, 2017, vol. 63, issue 7, 2323-2339

Abstract: We give a method based on convex programming to calculate the optimal superreplicating and subreplicating prices and corresponding hedging portfolios of a financial derivative in terms of other financial derivatives in a discrete-time setting. Our method produces a model that matches the superreplicating (or subreplicating) price within an arbitrary precision and is consistent with the other financial derivatives prices. Applications include robust replication in terms of call prices with various strikes and maturities of forward start options, volatility and variance swaps and derivatives, cliquet calls, barrier options, and lookback and Asian options. Numerical examples show that, in some cases, the best superreplicating and/or subreplicating prices are within 10% of the price obtained by a standard model but considerably differ from it in other cases. Our method can incorporate bid-ask spreads, interest rates and dividends, and various limitations to the diffusion model.

Keywords: model risk; robust replication; robust hedging; convex programming; financial derivatives (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:inm:ormnsc:v:63:y:2017:i:7:p:2323-2339

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