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Article Dans Une Revue Journal of Optimization Theory and Applications Année : 2024

Super-hedging an arbitrary number of European options with integer-valued strategies

Résumé

The usual theory of asset pricing in finance assumes that the financial strategies, i.e. the quantity of risky assets to invest, are realvalued so that they are not integer-valued in general, see the Black and Scholes model for instance. This is clearly contrary to what it is possible to do in the real world. Surprisingly, it seems that there is no contribution in that direction in the literature. In this paper, we show that, in discrete-time, it is possible to evaluate the minimal super-hedging price when we restrict ourselves to integer-valued strategies. To do so, we only consider terminal claims that are continuous piecewise affine functions of the underlying asset. We formulate a dynamic programming principle that can be directly implemented on an historical data and which also provides the optimal integer-valued strategy.
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hal-03835027 , version 1 (02-11-2022)

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Dorsaf Cherif, Meriam El Mansour, Emmanuel Lépinette. Super-hedging an arbitrary number of European options with integer-valued strategies. Journal of Optimization Theory and Applications, 2024, ⟨10.1007/s10957-024-02409-2⟩. ⟨hal-03835027⟩
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