This paper develops an elementary theory of global supply chains. We consider a world economy with an arbitrary number of countries, one factor of production, a continuum of intermediate goods, and one final good. Production of the final good is sequential and subject to mistakes. In the unique...

The primary motivation behind quantitative modeling in international trade and many other fields is to shed light on the economic consequences of policy changes. To help assess and potentially strengthen the credibility of such quantitative predictions we introduce an IV-based goodness-of-fit...

In spite of deep structural reforms, Central American countries have failed to experience rapid and stable growth in recent years. This paper explores whether and to what extent we can consider lack of innovation and technology adoption as a main reason for this disappointing experience. The...

Industrial agglomerations or `clusters` arise in the presence of industry-specific and local externalities, also called Marshallian externalities. The standard argument is that such externalities may justify a policy of infant-industry protection to allow and encourage clusters to emerge. This...

There is a common perception that low productivity or low growth is due to what can be called an `innovation shortfall,` usually identified as a low rate of investment in research and development (RD) compared with some high-innovation countries. The usual reaction to this perceived problem is...

This paper discusses coordination failures, their relevance to developing countries, and the circumstances under which they occur, arguing that that clusters can be seen as agglomerations of firms and organizations in related economic activities among which coordination failures are likely to...

This paper examines the microeconomic interventions used to complement Washington Consensus reforms in Latin America. It maintains that the kind of interventions currently in vogue in most countries lack a sound theoretical and empirical foundation or are applied in a manner likely to prove...

Is the variation in bilateral trade flows across countries primarily due to differences in the number of exporting firms (the extensive margin) or in the average size of an exporter (the intensive margin)? And how does this affect the estimation and quantitative implications of the Melitz (2003)...

We present a dynamic quantitative trade and migration model that incorporates downward nominal wage rigidities and show how this framework can generate changes in unemployment and labor participation that match those uncovered by the empirical literature studying the "China shock." We find that...