Study of the risk-adjusted pricing methodology model with methods of Geometrical Analysis

Ljudmila A. Bordag

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Abstract: Families of exact solutions are found to a nonlinear modification of the Black-Scholes equation. This risk-adjusted pricing methodology model (RAPM) incorporates both transaction costs and the risk from a volatile portfolio. Using the Lie group analysis we obtain the Lie algebra admitted by the RAPM equation. It gives us the possibility to describe an optimal system of subalgebras and correspondingly the set of invariant solutions to the model. In this way we can describe the complete set of possible reductions of the nonlinear RAPM model. Reductions are given in the form of different second order ordinary differential equations. In all cases we provide solutions to these equations in an exact or parametric form. We discuss the properties of these reductions and the corresponding invariant solutions.

Date: 2009-10, Revised 2010-02
New Economics Papers: this item is included in nep-rmg
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Published in Stochastics: International Journal of Probability and Stochastic processes, vol. 83, NN. 4-6, pp. 333- 345, 2011

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Persistent link: https://EconPapers.repec.org/RePEc:arx:papers:0911.0113

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