We present a unified treatment of optimal trade policy for a small country. The well-known results for duopoly and competitive markets emerge as benchmark cases of our model. In addition, we show that changes in market structure have non-monotonic effects on optimal tariffs. Our results suggest...

Flüchtendes Schwarzgeld sowie aus Osteuropa und der Türkei zurückdrängende DM-Bestände können den Kursverfall des Euro maßgeblich erklären: Das von Hans-Werner Sinn und Frank Westermann formulierte Portfolio-Balance Modell unterscheidet nämlich im Gegensatz zu anderen Modellen dieser...

This paper reconsiders the determinants of the exchange rate by studying the historical episode after the fall of the Iron Curtain. Testing a modified portfolio balance model, we attribute the strength of the deutschmark in the early nineties and the puzzling decline of the euro during its...