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Some Divergence Properties of Asset Price Models
Department of Mathematical Stochastics, University of Karlsruhe, Englerstrasse 2, D-76128 Karlsruhe, Germany
Received: 15 August 2001; Accepted: 20 December 2001 / Published: 20 December 2001
Abstract: We consider asset price processes Xt which are weak solutions of one-dimensional stochastic differential equations of the form (equation (2)) Such price models can be interpreted as non-lognormally-distributed generalizations of the geometric Brownian motion. We study properties of the Iα-divergence between the law of the solution Xt and the corresponding drift-less measure (the special case α=1 is the relative entropy). This will be applied to some context in statistical information theory as well as to arbitrage theory and contingent claim valuation. For instance, the seminal option pricing theorems of Black-Scholes and Merton appear as a special case.
Keywords: Iα-divergence; relative entropy; statistical information; equivalent martingale measure; option pricing; Black-Scholes-Merton
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MDPI and ACS Style
Stummer, W. Some Divergence Properties of Asset Price Models. Entropy 2001, 3, 300-324.
Stummer W. Some Divergence Properties of Asset Price Models. Entropy. 2001; 3(5):300-324.
Stummer, Wolfgang. 2001. "Some Divergence Properties of Asset Price Models." Entropy 3, no. 5: 300-324.