This paper investigates the impact of outsourcing on sectoral reallocation in the U.S. over the period 1947-2007, and on the rise in services in particular. Roughly 40% of the growth of the service sector comes from professional and business services. This is an unusual industry as more than 90%...

We exploit a unique panel of 75 metro areas (‘cities’) across the globe and employ a cityfixed effects model to identify the determinants of within-city changes in air pollution concentration between 2005 and 2011. Increasing car and population densities significantly reduce air pollution...

When regulated firms are offered compensation to prevent them from relocating, efficiency requires that payments be distributed across firms so as to equalize marginal relocation probabilities, weighted by the damage caused by relocation. We formalize this fundamental economic logic and apply it...

The recent work on misallocation argues that aggregate productivity in poor countries is low because various market frictions prevent marginal products from being equalized. By focusing on such allocative inefficiencies, misallocation is construed as a purely static phenomenon. This paper argues...

Why is GDP growth so much more volatile in poor countries than in rich ones? We identify four possible reasons: (i) poor countries specialize in more volatile sectors; (ii) poor countries specialize in fewer sectors; (iii) poor countries experience more frequent and more severe aggregate shocks...

Can the increasing significance of knowledge-products in national income - the growing weightless economy - influence economic development? Those technologies reduce ''distance'' between consumers and knowledge production. This paper analyzes a model embodying such a reduction. The model shows...

Whether or not the marginal product of capital (MPK) differs across countries is a question that keeps coming up in discussions of comparative economic development and patterns of capital flows. We use easily accessible macroeconomic data to shed light on this issue, and find that MPKs are...

Economies at early stages of development are often shaken by abrupt changes in growth rates, whereas in advanced economies growth rates tend to be relatively stable. To explain this pattern, we propose a theory of technological diversification. Production makes use of different input varieties,...

While it is generally recognized that electoral competition can have a major influence on public spending decisions, there has been little effort to consider whether the move to multiparty elections in African countries in recent years has led to a redistribution of public expenditures between...

This paper studies how differences in the size of barriers to capital accumulation can account for differences in long run economic development paths. In this model barriers affect both the beginning date and the pace of the modern economic growth. A fundamental property of the model is that...