This paper develops a North-South product model in which Southern imitation and the North-South flow of foreign direct investment (FDI) are endogenously determined. In the model, a strengthening of IPR protection in the South reduces the rate of imitation, which, in turn, increases the flow of...

We study a dynamic general equilibrium model where innovation takes the form of the introduction new goods, whose production requires skilled workers. Innovation is followed by a costly process of standardization, whereby these new goods are adapted to be produced using unskilled labor. Our...

To study the short-run and long-run implications on wage inequality, we introduce directed technical change into a Ricardian model of offshoring. A unique final good is produced by combining a skilled and an unskilled product, each produced from a continuum of intermediates (tasks). Some of...

The identification of age, cohort (vintage), and period (year) effects in a panel of individuals or other units is an old problem in the social sciences, but one that has not been much studied in the context of measuring researcher productivity. In the context of a semi-parametric model of...

Because of scale effects, idea-based growth models have the counterfactual implication that larger countries should be much richer than smaller ones. New trade models share this same problematic feature: although small countries gain more from trade than large ones, this is not strong enough to...

The revived Bretton Woods framework we proposed in 2003 remains a useful way to understand the international financial system. We document that the system survived the 2008 crisis. Looking forward, we argue that the system will continue to evolve as we expected. China is likely to graduate from...

From 1980 to 1992, emerging and developing countries grew by 3.4 percent per year. Their annual rate of growth increased to 5.4 percent between 1993 and 2012. No such increase occurred for advanced nations, whose average growth from 1980-2012 was roughly constant (excluding the impact of the...

This paper examines the impact of the deregulation of compulsory industrial licensing in India on firm-size dynamics and the reallocation of resources within industries over time. Following deregulation, we find that the extent of resource misallocation declines and a considerable thickening 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...

Trade liberalization and political separatism go hand in hand. In a world of trade restrictions, large countries enjoy economic benefits because political boundaries determine the size of the market. In a world of free trade and global markets even relatively small cultural, linguistic or ethnic...