Based on the hypothesis that microdata are of crucial importance for internationally competitive economic research and scientific advice in economic and social policy, the authors develop various proposals for an improved data supply for empirical work in Germany. Present shortcomings are mainly...

In this paper I discuss a structural problem facing the United States with respect to our policy responses in the context of trade and technological change and their impact on workers. Both trade and technological change have put enormous pressure on the U.S. economy to raise the skill level of...

Policy advice can help political actors design and implement institutional reforms through the generation of political and substantial legitimacy. This article clarifies the institutional pre-conditions of effective supply and transfer of policy advice with particular respect to the field of...

Arguably, one of the most important developments in the field of applied economics during the last decades has been the emergence of systematic policy evaluation, with its distinct focus on the establishment of causality. By contrast to the natural sciences, the objects of our scientific...

When policymakers and private agents use models, the economists who design the model have an incentive to alter it in order to influence outcomes in a fashion consistent with their own preferences. I discuss some consequences of the existence of such ideological bias. In particular, I analyze...