Following Ramsey (1928) theoretical framework, this paper develops a dynamic model where a community is assumed to be importing two forms of foreign capital: external debt and foreign direct investment (FDI). The community is assumed to derive utility from consumption of goods and positive...

The literature has shown that the implied welfare gains from financial integration are very small. We revisit these findings and document that welfare gains are substantial if capital goods are not perfect substitutes. We use a model of optimal savings where the elasticity of substitution...

We use recent immigration data from 195 countries and propose an index of population diversity based on people's birthplaces. This new index is then decomposed into a size (share of foreign born) and a variety (diversity of immigrants) component and is available for 1990 and 2000 disaggregated...

We use recent immigration data from 195 countries and propose an index of population diversity based on people's birthplaces. This new index is then decomposed into a size (share of foreign born) and a variety (diversity of immigrants) component and is available for 1990 and 2000 disaggregated...

The diversity of people has economic costs and benefits. Using recent immigration data from 195 countries, we propose an index of diversity based on people's birthplaces. This new index is decomposed into a "size" (share of foreign born) and a "variety" (diversity of immigrants) component and is...

Productivity growth has declined since the late 1990s, slowing the catching-up process. Structural reforms to strengthen competition, entrepreneurship and innovation would go a long way toward enhancing it. Recent competition policy reforms that strengthen enforcement of cartel law must now be...

Reduction of large and persistent external imbalances is currently a key focus of G-20 discussions. The paper argues that in a progressively multipolar world economy, the goals of global rebalancing, growth, and development are increasingly inter-linked. Growth-oriented rebalancing calls for...

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...