The authors address the issue of effectiveness of medical rehabilitation in terms of labor market outcomes by analyzing a large representative administrative panel data set for Germany. The research design focuses on socio-demographic group differences in before-after differences in days with...

We study the determinants and interactions of sustainability and risk management with a cross-sectional dataset on commercial cattle farming in semi-arid rangelands in Namibia. Cattle farmers in Namibia act within a coupled ecological-economic system that is subject to extensive degradation and...

The present paper on the now partly well known Russian mathematician and "amateur economist" v. Charasoff was originally written in 1987 together with H. Duffner three years after Charasoff's remarkable contribution of 1910 "Das System des Marxismus" (The system of Marxism) had been rediscovered...

We prove that, in all finite generic extensive-form games of perfect information, a continuous-time best response dynamic always converges to a Nash equilibrium component. We show the robustness of convergence by an approximate best response dynamic: whatever the initial state and an allowed...

We propose a formal description of individual preferences that captures a subsistence requirement in consumption in an otherwise standard constant-elasticity-ofsubstitution (CES) utility specification. We study how substitutability between the subsistence good and another good depends on the...

Human capital has been shown to be highly important in the venture creation process. In this study, we account for the fact that human capital on the individual and regional levels may be interrelated in affecting entrepreneurship. We use German survey data, which allow us to focus on a specific...

How can small and medium-sized German postal providers ensure nationwide geographical coverage without the aid of the former monopolist? A closer look at the industry revealed that postal providers in Germany engage in different types of cooperation in order to expand their geographical coverage...

In order to investigate firm survival and the potential for competition in the German postal market, I analyzed key success determinants of market leader competitors. The analysis is based on eight 2011 case studies, in which I conducted in-depth interviews during on-site visits to various...

The major German health care reforms undertaken since the late 1990s resulted in the adoption of selective contracting mechanisms in a formerly sectorally separated health care system. These reforms marked the launch of managed care in Germany that is expected to yield both a higher quality of...

Business managers are well aware of the fact that credit constraints can hamper or even prevent exporting. Economists only recently started to incorporate these arguments in theoretical models of heterogeneous firms and to test the implications of these models econometrically with firm-level...