The Mystery of the Vanishing Benefits: An introduction to impact evaluation

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Sun, 08/31/2008 - 12:52 — Cristina Sette

Publication Type:

Journal Article

Authors:

Martin Ravallion

Source:

The World Bank Economic Review, Volume 15, Number 1, p.115-140 (2001)

URL:

http://siteresources.worldbank.org/INTISPMA/Resources/383704-1153333441931/Mystery_Vanishing_Benefits.pdf

Keywords:

Evaluation; ex post; impact evaluation; world bank

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.

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