@TechReport{ it:2006-028, author = {Ulrika Pettersson and Elisabeth Larsson and Gunnar Marcusson and Jonas Persson}, title = {Improved Radial Basis Function Methods for Multi-Dimensional Option Pricing}, institution = {Department of Information Technology, Uppsala University}, department = {Division of Scientific Computing}, year = {2006}, number = {2006-028}, month = may, abstract = {In this paper, we have derived a radial basis function (RBF) based method for the pricing of financial contracts by solving the Black-Scholes partial differential equation. As an example of a financial contract that can be priced with this method we have chosen the multi-dimensional European basket call option. We have shown numerically that our scheme is second order accurate in time and spectrally accurate in space for constant shape parameter. For other, non-optimal choices of shape parameter values, the resulting convergence rate is algebraic. We propose an adaptive node point placement that improves the accuracy compared with a uniform distribution. Compared with an adaptive finite difference method, the RBF method is 20-40 times faster in one and two space dimensions and has approximately the same memory requirements.} }