In previous papers we have argued that aid is likely to mitigate the negative effects of external shocks on economic growth (i.e., aid is more effective in countries that are more vulnerable to external shocks). Recently an important debate has emerged about the possible negative effects of aid...

This paper surveys 50 years of empirical research on the macroeconomic impact of aid, looking mainly at studies examining the link between aid and growth. It argues that studies dating until the late 1990s produced either contradictory or inconclusive results. Aid either worked, or it didn’t,...

The literature on aid has come a long way in recent years, and as a result we now know much more about aid effectiveness than possibly ever before. But significant gaps in knowledge remain. One such gap is the effectiveness of aid in the so-called ‘fragile states’, countries with critically...