Journal Article

Evaluation in the Practice of Development

Martin Ravallion

in The World Bank Research Observer

Published on behalf of World Bank

Volume 24, issue 1, pages 29-53
Published in print February 2009 | ISSN: 0257-3032
Published online March 2009 | e-ISSN: 1564-6971 | DOI:
Evaluation in the Practice of Development

More Like This

Show all results sharing these subjects:

  • Publicly Provided Goods
  • Development Planning and Policy


Show Summary Details


Standard methods of impact evaluation often leave significant gaps between what we know about development effectiveness and what we want to know—gaps that stem from distortions in the market for knowledge. The author discusses how evaluations might better address these knowledge gaps and so be more relevant to the needs of practitioners. It is argued that more attention needs to be given to identifying policy-relevant questions (including the case for intervention), that a broader approach should be taken to the problems of internal validity (including heterogeneity and spillover effects), and that the problems of external validity (including scaling up) merit more attention by researchers.

Keywords: H43; O22

Journal Article.  10540 words. 

Subjects: Publicly Provided Goods ; Development Planning and Policy

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.