Convergence of Utility Indifference Prices to the Superreplication Price: the Whole Real Line Case |
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Authors: | Laurence Carassus Miklós Rásonyi |
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Institution: | (1) Laboratoire de Probabilités et Modèles Aléatoires, Université Denis Diderot, Paris 7, France;(2) Computer and Automation Institute of the Hungarian Academy of Sciences, Budapest, Hungary;(3) Vienna University of Technology, Vienna, Austria |
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Abstract: | A discrete-time financial market model is considered with a sequence of investors whose preferences are described by concave
strictly increasing functions defined on the whole real line. Under suitable conditions we prove that, whenever their absolute
risk-aversion tends to infinity, the respective utility indifference prices of a given bounded contingent claim converge to
the superreplication price. We also prove that there exists an accumulation point of the optimal strategies’ sequence which
is a superhedging strategy. |
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Keywords: | Derivative pricing Utility indifference price Superreplication Utility maximization |
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