It is clear from the implications of growth theory that the impact of aid depends on how it affects savings, investment and government behaviour. In respect of low-income countries, which are the principal aid recipients and the economies for which the issue of the impact of aid on growth is...

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 low...