"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...

A developing country's good (or bad) export performance in one market can affect its future export performance not only in the same market but also in "neighboring" markets. This happens if importers in different countries share information about a particular exporter's performance or if...

"Recipient government responses to development project aid have typically been studied at high levels of aggregation, using cross-country comparisons and/or aggregate time series data. Yet increasingly the relevant decisions are being made at the local level, in response to specific...

A lot can be learned about the impact of an antipoverty program by studying income replacement for those observed to leave the program after its retrenchment. A Bank-supported workfare program in Argentina is found to have a sizeable impact on participants' incomes

"Calculations of marginal welfare effects suggest that agricultural development has had important positive effects on national welfare, especially in developing countries. Latin American and Caribbean countries have also benefited from agricultural growth, but nonagricultural production has had...