Program Evaluation and Spillover Effects
This paper is a practical guide for researchers and practitioners who want to understand spillover effects in program evaluation. The paper defines spillover effects and discusses why it is important to measure them. It explains how to design a fie...
| Main Authors: | , |
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| Format: | Working Paper |
| Language: | English en_US |
| Published: |
World Bank, Washington, DC
2015
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| Subjects: | |
| Online Access: | http://documents.worldbank.org/curated/en/2015/04/24407918/program-evaluation-spillover-effects http://hdl.handle.net/10986/21857 |
| Summary: | This paper is a practical guide for
researchers and practitioners who want to understand
spillover effects in program evaluation. The paper defines
spillover effects and discusses why it is important to
measure them. It explains how to design a field experiment
to measure the average effects of the treatment on eligible
and ineligible subjects for the program in the presence of
spillover effects. In addition, the paper discusses the use
of nonexperimental methods for estimating spillover effects
when the experimental design is not a viable option.
Evaluations that account for spillover effects should be
designed such that they explain the cause of these effects
and whom they affect. Such an evaluation design is necessary
to avoid inappropriate policy recommendations and neglecting
important mechanisms through which the program operates. |
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