The typical identification strategy in aid effectiveness studies assumes donor motives do not influence the impact of aid on growth. We call this homogeneity assumption into question, first constructing a model in which donor motives matter and then testing the assumption empirically.

In their introduction to the special issue of the Review of Economic Dynamics on Great Depressions of the 20th Century (Vol. 5, 2002), Timothy J. Kehoe and Edward C. Prescott argue that in the last few years great depressions have hit two rich countries: New Zealand and Switzerland. We briefly...