This paper solves for optimal international portfolio choice in the presence of liquidity constraints and undiversifiable labor income risk. Optimal portfolios are internationally diversified while positive correlation between domestic stock market returns and permanent labor income shocks can...

We identify the impact of local firm concentration on incumbent performance with a quasi natural experiment. When Germany was divided after World War II, many firms in the machine tool industry fled the Soviet occupied zone to prevent expropriation. We show that the regional location decisions...

There has been a shift, in recent years, in the understanding of the process of development. It is not a switch (as often portrayed) from a state-dependent view of development to a market-reliant view. Rather, it involves rejecting a "blood, sweat and tears" view of development in favour of...

This paper estimates a structural model of economic geography using cross-country data on per capita income, bilateral trade, and the relative price of manufacturing goods. More than 70% of the variation in per capita income can be explained by the geography of access to markets and to sources...

We report on an on-going project, which asks a number of questions relevant to the study of state capacity. What are the main economic and political determinants of the state’s capacity to raise revenue and support private markets? How do risks of violent conflict affect the incentives to...

This paper presents a single unified framework that integrates the theoretical literature on Schumpeterian endogenous growth and major strands of the empirical literatures on R&D, productivity growth, and productivity convergence. Starting from a structural model of endogenous growth following...

This paper develops a model of economic growth and activity locating endogenously on a 3- dimensional featureless global geography. The same economic forces influence simultaneously growth, convergence, and spatial agglomeration and clustering. Economic activity is not concentrated on discrete...

Decentralization is commonly advocated as a means to improve primary services and hence accelerate social development. Although solid theoretical arguments support this position, the empirical evidence by and large does not. This paper examines whether local governance can improve public service...

Internet development holds the promise of transmitting economic value across physical space at zero marginal cost. In such a “weightless economy”, what factors matter for the location of economic activity and thus for economic development? This paper sketches a model of spatial dynamics over...

Despite the fact that importing and exporting are extremely rare firm activities, economists generally devote little attention to the role of firms when discussing international trade. This paper summarizes key differences between trading and non-trading firms, demonstrates how these differences...