Optimal calibration of exponential Levy models
- Belomestny, Denis
- Reiss, Markus
2010 Mathematics Subject Classification
- 62G20 60G51 91B28
- European option, jump diffusion, minimax rate, severely ill-posed, nonlinear inverse problem
Based on options data at the market the problem of calibrating an exponential Lévy model for the underlying asset is investigated. It is shown that this statistical inverse problem is in general severely ill-posed and exact minimax rates of convergence are derived. The estimation procedure we propose is based on the explicit inversion of the option price formula in the spectral domain and a cut-off scheme for high frequencies as regularisation. Its performance is illustrated by numerical simulations.