The paper develops a model of proportionate growth to describe the dynamics of the network of international trade flows. We show that a large number of the empirical regularities characterizing international trade - such as the fraction of zero trade flows across pairs of countries, the positive...

Largely because of its vast copper reserves, Chile's exports are highly concentrated on this low complexity product and this is often cited as a major drawback of its economic policy framework. However, its exogenous copper abundance conceals the country's success in developing non-mineral and...

A robust empirical determinant of long-term economic growth in many developing countries has been the expansion and diversification of the export sector. The latter, in turn, has been influenced by capital accumulation and economic growth. The growth model developed here explores this...