This paper tests the differential effects of the generosity of the welfare state under free migration and under policy-controlled migration, distinguishing between source developing and developed countries. We utilize free-movement within the EU to examine the free migration regime and compare...

The global crisis highlights the continued vulnerability of developing countries to shocks from advanced economies. Just a few years after the global crisis, the eurozone sovereign debt crisis has emerged as the single biggest threat to the global outlook. In this paper, we apply the event study...

Pharmaceutical firms' use of secondary patents to extend periods of exclusivity generates concerns among policymakers worldwide. In response, some developing countries have introduced measures to curb the grant of these patents. While these measures have received considerable attention, there is...

In this paper, I develop a model to analyze how skill premia differ over time and across countries, and use this model to study the impact of international trade on wage inequality. Skill premia are determined by technology and the relative supply of skills. An increase in the relative supply of...

Classic Big Push industrialization envisions state planners coordinating economic activity to internalize a range of externalities that otherwise lock in a low-income equilibrium, but runs afoul of well-known government failure problems. Successful Big Push coordination may occur instead when a...

We examine the productivity of informal firms (those that are not registered with the government) in 24 African countries using field work and World Bank firm level data. We find that productivity jumps sharply if we compare small formal firms to informal firms, and rises rapidly with the size...

We estimate productivities at the sector level for 72 countries and 5 decades, and examine how they evolve over time in both developed and developing countries. In both country groups, comparative advantage has become weaker: productivity grew systematically faster in sectors that were initially...

This paper builds a tractable partial equilibrium model in the spirit of Melitz (2003), which incorporates two dimensions of heterogeneity: firms specific productivity shocks and firm-market specific demand shocks. The structural parameters of interest are estimated using only cross-sectional...

This paper revisits the long-standing issue of the incidence of taxes in developing countries. Its central theme is that despite many decades of studies, tax incidence analyses for developing countries continue to be based upon the same shifting assumptions used in developed country studies,...

In developing countries, informal firms (those that are not registered with the government) account for about half of all economic activity. We consider three broad views of the role of such firms in economic development. According to the romantic view, these firms would become the engine of...