Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
One factor limiting aid effectiveness is its volatility. We examine aid volatility in 66 countries over 1975–2004, paying particular attention to the characteristics of ‘difficult partnership countries’ and making a distinction between sector aid and total aid. We explore whether weak recipient institutions and policies are associated with greater volatility, allowing for differences in donor characteristics. Institutional quality and macroeconomic stability affect the stability of all kinds of aid, as does reliance on a small number of donors. However, the relative importance of these effects varies across different aid types.