In this paper we present a new approach to evaluate the environmental efficiency of decision making units. We propose a model that describes a two-stage process consisting of a production and an end-of-pipe abatement stage with the environmental efficiency being determined by the efficiency of...

In this paper, I investigate employment behaviour of women one year after childbirth. Since the study is based on a sample of mothers only, a corrective method for selection into motherhood has been applied. In the empirical work, I use the family sex composition as an instrument for fertility....

Diese Arbeit ist die erste empirische Untersuchung, die den Wert eines statistischen Lebens (WSL) für die Bundesrepublik Deutschland ermittelt. Die Analysen werden auf der Grundlage eines aus IAB-Beschäftigtenstichprobe und Arbeitsunfallinformationen der Berufsgenossenschaften...

Since financial derivatives are key instruments for risk taking as well as risk reduction, it is only straightforward to examine their role in currency crises. This paper addresses this issue by investigating the impact of currency futures trading on the underlying exchange rates. After a...

It is obvious that the German economy exhibits a significant decline in economic growth during the last two decades. Although the German economy has still to overcome the burden of the reunification in 1990 it is shown that this burden might be only one reason of this decline. In this study we...

This paper analyzes computer use by older male employees and estimates the impact of computer use on their employment status, based on individual data from the German Socio-Economic Panel (GSOEP) for the years 1997 and 2001. In line with previous research on the diffusion of new technologies, a...