The Mystery of the Vanishing Benefits: An Introduction to Impact Evaluation
Open Access
- 1 June 2001
- journal article
- Published by Oxford University Press (OUP) in The World Bank Economic Review
- Vol. 15 (1) , 115-140
- https://doi.org/10.1093/wber/15.1.115
Abstract
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 Analyst is an economist in the Ministry of Finance in the fictional country of Labas. In the process of figuring out how to evaluate a human resource program targeted to the poor, Ms. Analyst learns the strengths and weaknesses of the main methods of ex post impact evaluation.Keywords
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