Abstract
In seeking to make programs of economic reform supported by the IFIs more successful it is important to ensure that they are viable. Will governments be persuaded to participate? Will they complete the programs they negotiate? And will the IFIs be prepared to provide the resources? This paper formally analyses the factors influencing viability. It examines the constraints on participation and the need for incentive compatibility. The analysis identifies the threats to viability and the direction that reform should take. It places the effectiveness of programs firmly within a political economy framework and extends recent theories of program implementation by examining participation from the viewpoint of both the governments that demand assistance and the IFIs that supply it.