Every country faces what economists call an intertemporal (across time) budget constraint, which requires that its government's future expenditures, including the servicing of its outstanding official debt, be covered by its government's future receipts when measured in present value. The...

This paper studies the pattern of allocation of foreign aid from various donors to receiving countries. We find considerable evidence that the direction of foreign aid is dictated by political and strategic considerations, much more than by the economic needs and policy performance of the...

Demographic changes, such as those anticipated in most OECD countries, have many economics effects that impinge on a country's fiscal viability. Evaluation of the effects of associated changes in capital-labor ratios and the welfare and behavior of different generations requires the use of a...