This article provides an introduction to the concepts and methods of impact evaluation. The author provides an intuitive explanation in the context of a concrete application. The article takes the form of a short story about a fictional character's on-the-job training in evaluation. Ms. Speedy...

Two trade-offs have been widely seen to severely constrain the scope for attacking poverty using redistributive transfers in poor countries: an equity-efficiency trade off and an insurance-efficiency trade off. This article argues that recent economic theories and evidence call into question the...

The central governments of many developing countries have chosen to decentralize their anti-poverty programs, in the expectation that local agents are better informed about local needs. The paper shows that this potential advantage of decentralized eligibility criteria can come at a large cost,...

Governments often prohibit resale of the benefits-in-kind provided by antipoverty programs. Yet the personal gains from those benefits are likely to vary and to be known privately, so there can be gains to poor people from trading their assignments. We know very little about those gains. To help...

The central governments of many developing countries have chosen to decentralize their anti-poverty programs, in the expectation that local agents are better informed about local needs. The paper shows that this potential advantage of decentralized eligibility criteria can come at a large cost,...