In 1971, Robert Mundell proposed a stunning solution to the three problems then affecting the U.S. economy: high inflation and unemployment, and a weak currency. Mundell suggested that the policy mix of fiscal expansion and monetary contraction could work to raise output, reduce inflation, and...

We develop a model to analyze the macroeconomic effects of a scaling-up of aid and assess the implications of different policy responses. The model features key structural characteristics of low-income countries, including varying degrees of public investment efficiency and a learning-by-doing...