"In this paper the authors estimate the rate of return to firm investments in human capital in the form of formal job training. They use a panel of large firms with unusually detailed information on the duration of training, the direct costs of training, and several firm characteristics such as...

"This paper asks whether new technological capacity for producing and exporting additional products provides incentives for greater capital accumulation, without being fully reflected in a higher rate of total factor productivity (TFP) growth. Using a highly disaggregated data set of each...

"The authors analyze recent efforts at international cooperation to limit illegal migration, particularly through the use of legal migration avenues like guest worker schemes. They show that while guest worker schemes may be desirable as an avenue of international migration, they are an...

"Using panel data models, the author examines the threshold effects of the productivity of infrastructure investment in developing countries. He considers various specifications of an augmented production function that allow for endogenous thresholds. More precisely, these specifications are...

"One of the recurring themes in the sustainability literature has been the legitimacy of using an economic framework to account for natural resources. This paper examines the potential for substituting between different inputs in the generation of income, where the inputs include natural...

"Developing countries face a host of macroeconomic challenges in the design and implementation of development strategies and policies. The importance of the underlying poverty and distributional issues creates a need for relevant and reliable ways of tracking the social impact of shocks and...

"Theories of poverty traps stand in sharp contrast to the view that anybody can make it through hard work and thrift. However, empirical detection of poverty traps is complicated by the lack of long panels, measurement error, and attrition. This paper shows how dynamic pseudo-panel methods can...

"The authors study how the effect of trade openness on economic growth depends on complementary reforms that help a country take advantage of international competition. This issue is illustrated with a simple Harris-Todaro model where output gains after trade liberalization depend on the degree...

"The authors analyze general equilibrium relationships between trade policy and the household distribution of income, decomposing social welfare into real income level and variance components and emphasizing Gini and Atkinson indexes. They embed these inequality-adjusted social welfare functions...

"The author tests how the local economic structure-measured by a region's sector specialization, competition, and diversity-affects the technological growth of manufacturing sectors. Most of the empirical literature on this topic assumes that in the long run more productive regions will attract...