We provide an overview of the recent developments of the literature on the determinants of long term capital flows, global imbalances and valuation effects. We present the main stylized facts of the new international financial landscape in which external balance sheets of countries have grown in...

We explore the determinants of research specialization across countries and its consequences for relative wages. Using a dynamic Ricardian model we examine the effects of faster international technology diffusion and lower trade barriers on the incentive to innovate. In the absence of any...

This paper argues that detailed studies of particular economies, such as Bob Gregory's work on Australia, are relevant to all of economics. The paper builds on the concept of a model species from biology to develop the notion of a model economy -- one whose experiences illuminate fundamental...

When local cost discovery generates knowledge spillovers, specialization patterns become partly indeterminate and the mix of goods that a country produces may have important implications for economic growth. We demonstrate this proposition formally and adduce some empirical support for it. We...

Yes, but only for large monetary shocks. In particular, we show that in a broad class of models where shocks have continuous paths, the propagation of a monetary impulse is independent of the nature of the sticky price friction when shocks are small. The propagation of large shocks instead...

The first part of the paper analyzes the various components (as well as likely failures) in the complex two-way market chain that links the supply of economic theories with the design, sale and implementation of workable economic policies. Among other aspects of this link two points are...