Research efforts towards new energy sources and towards the efficiency of energy use will be vital to reducing CO2 abatement costs in the long term. Can such efforts be induced by price instruments? Economists often cite induced technological change as a possible consequence of environmental...

This paper analyzes how enforcement along the U.S.-Mexican border has affected the market for migrant smugglers. Using a unique dataset that links border crossing histories from illegal Mexican migrants to aggregate enforcement and punishment statistics, we find that the effect of enforcement on...

Die Weltkonjunktur zeigt sich im Frühsommer 2003 leicht aufwärtsgerichtet. Zu einer durchgreifenden Erholung ist es bisher noch nicht gekommen. Belastend wirkten insbesondere die Irak-Krise, der zwischenzeitliche Höhenflug des Erdölpreises, der Ausbruch der Lungenkrankheit SARS sowie die...