Welfare recipients in Germany are allowed to take up supplementary jobs while receiving welfare. The possibility of having a supplementary job was introduced to reduce welfare dependency and facilitate successful labor market integration. In the present study, we use the German Panel Study...

In this paper, we propose a novel approach to the study of international trade that leads to a measure of country openness that is quite different from the various alternatives proposed by the received literature. In contrast to these, our measure does not use indicators of aggregate trade...