Abstract.
The aim herein is to analyze utility-based prices and hedging strategies. The analysis is based on an explicitly solved example of a European claim written on a nontraded asset, in a model where risk preferences are exponential, and the traded and nontraded asset are diffusion processes with, respectively, lognormal and arbitrary dynamics. Our results show that a nonlinear pricing rule emerges with certainty equivalent characteristics, yielding the price as a nonlinear expectation of the derivative’s payoff under the appropriate pricing measure. The latter is a martingale measure that minimizes its relative to the historical measure entropy.
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Received: July 2003,
Mathematics Subject Classification:
93E20, 60G40, 60J75
JEL Classification:
C61, G11, G13
The second author acknowledges partial support from NSF Grants DMS-0102909 and DMS-0091946. We have received valuable comments from the participants at the Conferences in Paris IX, Dauphine (2000), ICBI Barcelona (2001) and 14th Annual Conference of FORC Warwick (2001). While revising this work, we came across the paper by Henderson (2002) in which a special case of our model is investigated
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Musiela, M., Zariphopoulou, T. An example of indifference prices under exponential preferences. Finance and Stochastics 8, 229–239 (2004). https://doi.org/10.1007/s00780-003-0112-5
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DOI: https://doi.org/10.1007/s00780-003-0112-5