"Generating electricity from renewable sources is more expensive than conventional approaches, but reduces pollution externalities. Analyzing the tradeoff is much more challenging than often presumed, because the value of electricity is extremely dependent on the time and location at which it is...

With increased global interest in biofuels, Zambia, a Sub-Saharan African country that entirely depends on imports for its petroleum supply, is planning to implement blending mandates for biofuels. But, a large number of issues-including production costs of biofuels, land requirements to meet...

For a representative sample of manufacturing firms in 26 countries, this paper shows that changes in the cost of importing over time are significantly and negatively correlated with changes in the percentage of firms' material inputs that are of foreign origin. Furthermore, the paper shows that...