We estimate Frisch labour supply functions for married women using information on desired hours, under the assumptions that these are based on a smooth convex approximation of the budget constraint. The minimum distance approach used allows for correlated random effects both in the wage and in...

When studying particular subgroups of a population, like for instance lone parents, the econometrician typically has few observations at hand. In such a situation, it is vital to take advantage of any valid complementary information that may be available. In this paper we illustrate, for the...

Gerlach and Stephan (1994) proposed a test based on the idea that the wage premium, the part of the wage which is not explained by the stock of human capital, should help predict variables such as career expectations (quit, change occupation, leave the labour force) and some job characteristics...

In the face of complex budget constraints the assumption of rationally acting individuals having complete knowledge of the tax system is a theoretical borderline. The specific issues examined in this study are (i) to what extent do consumers (here married women) perceive their true marginal tax...

This paper addresses three major aspects of firms' process innovative activity: forward- looking behaviour, uncertainty w.r.t. returns of R&D investments, and oligopolistic competition on the product market. Assuming that R&D expenditures are cost-reducing investments, we derive an Euler...

This paper analyses the developments in the returns to education in West Germany for the period from 1984 to 1997. Based on simple Mincer-type wage equations, we estimate a return of about 8% for men and 10% for women, and these returns have remained remarkably stable over the period. On the...