This Mundell Fleming lecture at the International Monetary Fund’s 2001 annual research conference marks the 25th anniversary of Rudiger Dornbusch’s masterpiece, “Expectations and Exchange Rate Dynamics,” a seminal contribution to both policy and research in the field of international...

In the presence of markup differences, externalities and other social considerations, the equilibrium direction of innovation can be systematically distorted. This paper builds a simple model of endogenous technology, which generalizes existing comparative static results and characterizes...