Recent literature has emphasized the importance of transport costs and infrastructure in explaining trade, access to markets, and increases in per capita income. For most Latin American countries transport costs are a greater barrier to U.S. markets than import tariffs. The authors investigate...

The authors develop and estimate a model explaining the level and country-source composition of United States immigration since the early 1970s. The model incorporates ratios of source country income, education, and demographic structure, as well as relative inequality. The authors' model also...

This paper estimates the elasticity of substitution of U.S. imports using detailed trade data over the 1990-2003 period. The authors use a two-stage least squares framework in order to identify the elasticity parameter of interest. The authors use the elasticity estimates to assess the extent to...

The relevance of transport costs has increased as liberalization continues to reduce artificial barriers to trade. Countries need to adopt policies to get closer to global markets. Can improvements in infrastructure and regulation reduce transport costs? Is it worthwhile to implement policies...

Incomes in the poorest two quintiles on average increase at the same rate as overall average incomes. This is because, in a global dataset spanning 118 countries over the past four decades, changes in the share of income of the poorest quintiles are generally small and uncorrelated with changes...

Social welfare functions that assign weights to individuals based on their income levels can be used to document the relative importance of growth and inequality changes for changes in social welfare. In a large panel of industrial and developing countries over the past 40 years, most of the...

Much of the academic debate on the effectiveness of foreign aid is centered on the relationship between aid and growth. Different aid-growth studies find conflicting results: aid promotes growth everywhere; aid has a zero or negative impact on growth everywhere; or the effect of aid on growth...

China in the past few years has emerged as a net foreign creditor on the international scene with net foreign assets slightly greater than zero percent of wealth. This is surprising given that China is a relatively poor country with a capital-labor ratio about one-fifth the world average and...

The "rise of Asia" is something of a myth. During 1990-2005 China accounted for 28 percent of global growth, measured at purchasing power parity (PPP). India accounted for 9 percent. The rest of developing Asia, with nearly a billion people, accounted for only 7 percent, the same as Latin...

China has been the most rapidly growing economy in the world over the past 25 years. This growth has fueled a remarkable increase in per capita income and a decline in the poverty rate from 64 percent at the beginning of reform to 10 percent in 2004. At the same time, however, different kinds of...