Does research add value to aid? Specifically, does impact evaluation research help or hinder the delivery of development projects? This paper analyzes the question by constructing a new data set of 100 impact evaluations and 1,135 projects approved by the World Bank between 2005 and 2011. The...

Lesson drawing, or learning from past policies or programs, can improve current or future policies or programs and, thereby, lead to policy success. This requires various types of evaluations that identify and highlight different causal relationships in the system. However, the literature on...

Does research add value to aid? Specifically, does impact evaluation research help or hinder the delivery of development projects? This paper analyzes the question by constructing a new data set of 100 impact evaluations and 1,135 projects appro

This paper applies novel techniques to long-standing questions of aid effectiveness. It first replicates findings that donor finance is discernibly but weakly associated with sector outcomes in recipient countries. It then shows robustly that donors' own ratings of project success provide...

This paper applies novel techniques to long-standing questions of aid effectiveness. We first replicate findings that donor finance is discernibly but weakly associated with sector outcomes in recipient countries. We then show robustly that donors' own ratings of project success provide limited...