Option pricing in a CEV model with liquidity costs

Tom 43 / 2016

Krzysztof Turek Applicationes Mathematicae 43 (2016), 25-55 MSC: Primary 60H30; Secondary 93E20. DOI: 10.4064/am2242-1-2016 Opublikowany online: 21 April 2016

Streszczenie

The goal of this paper is to make an attempt to generalise the model of pricing European options with an illiquid underlying asset considered by Rogers and Singh (2010). We assume that an investor’s decisions have only a temporary effect on the price, which is proportional to the square of the change of the number of asset units in the investor’s portfolio. We also assume that the underlying asset price follows a CEV model. To prove existence and uniqueness of the solution, we use techniques similar to fixed point theorems and Feynman–Kac representation. Asymptotic behaviour of the option price for small values of the illiquidity parameter is also analysed and a numerical procedure along with some numerical results is included.

Autorzy

  • Krzysztof TurekInstitute of Mathematics
    Jagiellonian University
    30-348 Kraków, Poland
    e-mail

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