Fourier Inversion Formulas in Option Pricing and Insurance
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Several authors have used Fourier inversion to compute prices of puts and calls, some using Parseval’s theorem. The expected value of max (S – K, 0) also arises in excess-of-loss or stop-loss insurance, and we show that Fourier methods may be used to compute them. In this paper, we take the idea of using Parseval’s theorem further: (1) formulas requiring weaker assumptions; (2) relationship with classical inversion theorems for probability distributions; (3) formulas for payoffs which occur in insurance. Numerical examples are provided.
KeywordsFourier inversion Option pricing Stop-loss premiums Risk theory
AMS 2000 Subject Classification42A61 91B30
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