This paper studies signs and reasons of decline of job stability in West Germany. Using data from the German Socio-Economic Panel 1984-1997, we look at two measures for job stability. Based on repeated cross sectional data we first show that medium elapsed tenure declined for men. Secondly, we...

In mathematical finance diffusion models are widely used and a variety of different parametric models for the drift and diffusion coefficient coexist in the literature. Since derivative prices depend on the particular parametric model of the diffusion coefficient function of the underlying, a...

The analysis of diffusion processes in financial models is crucially dependent on the form of the drift and diffusion coefficient functions. A methodology is proposed for estimating and testing coefficient functions for ergodic diffusions that are not directly observable. It is based on...