The IMF Working Papers series is designed to make IMF staff research available to a wide audience. Almost 300 Working Papers are released each year, covering a wide range of theoretical and analytical topics, including balance of payments, monetary and fiscal issues, global liquidity, and national and international economic developments.
Should donors who are interested in the effectiveness of developmental programs rely on conditional budget support or on project aid? To answer this question, we present a model in which only a subset of the developmental expenditures can be subject to conditionality. We show that budget support is preferable to project aid when donors and recipients' preferences are aligned, and when assistance is small relative to recipients' resources. Then, we test our model estimating a modified growth model for a panel of developing countries, and find evidence in support of our predictions.