My paper reconstructs the path of German economist Friedrich A. Lutz (1901−1975) to American economics. The correspondence with his former teacherWalter Eucken, the founder of the Freiburg School, constitutes a crucial and yet unexplored source for the paper. Through Lutz's case, I demonstrate...

The analysis of migration in Findlay (1982) is extended by adding external economies of scale to the Ricardian model as in Ethier (1982). With external economies, the larger country always gains from trade but the smaller country may lose from trade unless the external economies of scale are...

Unlike previous empirical studies that focus on barriers to entry in international trade, we focus on barriers to exit as measured by passport costs for a crosssection of countries. We test four common theories on the determinants of such exit barriers and find that macroeconomic and brain-drain...

Vor dem Hintergrund einer wachsenden Weltbevölkerung ist für Deutschland für das Jahr 2060 eine Bevölkerung von 90 Millionen wahrscheinlicher als die offiziell vorausgesagte Abnahme auf 70 Millionen. Einer im nächsten halben Jahrhundert stabilen Einwohnerzahl Deutschlands entspricht eine...