We examine how to approximate a Lévy process by a hyperexponential jump-diffusion (HEJD) process, composed of Brownian motion and of an arbitrary number of sums of compound Poisson processes with double exponentially distributed jumps. This approximation will facilitate the pricing of exotic...

We investigate the presence of managerial skills in different categories of hedge funds. Our approach is more flexible that others [7, 10] since it does not make any a priori assumptions regarding the distribution of returns. We find that the Global Macro and Market Neutral funds do not follow a...

We analyze and compare the performance of the Fourier transform method in affine and quadratic term structure models. We explain why the method of the reduction to FFT in dimension 1 is efficient for ATSMs of type A0(n), but may lead to sizable errors for QTSMs unless computational errors are...