Does the pattern of social connections between individuals matter for macroeconomic outcomes? If so, how does this effect operate and how big is it? Using network analysis tools, we explore how different social structures affect technology diffusion and thereby a country’s rate of...

We study the relationship between geography and growth. To do so, we first develop a dynamic spatial growth theory with realistic geography. We characterize the model and its balanced growth path and propose a methodology to analyze equilibria with different levels of migration frictions. We...

The paper presents new stylized facts on the direction of capital flows. We find (i) international capital flows net of government debt and/or official aid are positively correlated with growth; (ii) sovereign debt flows are negatively correlated with growth only if debt is financed by another...

This is an attempt to derive broad, strategic lessons from the diverse experience with economic growth in last 50 years. The paper revolves around two key arguments. One is that neo-classical economic analysis is a lot more flexible than its practitioners in the policy domain have generally...

Whether diversity or specialization of economic activity better promotes technological change and subsequent economic growth has been the subject of a heated debate in the economics literature. The purpose of this paper is to consider the effect of the composition of economic activity on...

This paper sheds light on the questions, Why does knowledge spill over? and How does knowledge spill over? The answer to these questions lies in the incentives confronting scientists to appropriate the expected value of their knowledge considered in the context of their path-dependent career...

This paper has three goals. The first (and perhaps the most important one) is to provide a new compilation of data on ethnic, linguistic and religious composition at the sub-national level for a large number of countries. This data set allows us to measure segregation of different ethnic,...

This paper presents a simple model for analysing the contribution of investments in physical and institutional infrastructure to the transition process. In addition to the direct cost savings, infrastructure investment generates important indirect effects, or transition impacts. The model shows...

This paper describes a simple model of technology adoption which combines the two engines of growth emphasized in the recent growth literature: human capital accumulation and technological progress. Our model economy does not create new technologies, it simply adopts those that have been created...