When does rigorous impact evaluation make a difference? The case of the Millennium Villages
When is the rigorous impact evaluation of development projects a luxury, and when a necessity? The authors study one high-profile case: the Millennium Villages Project (MVP), an experimental and intensive package intervention to spark sustained local economic development in rural Africa. They illustrate the benefits of rigorous impact evaluation in this setting by showing that estimates of the project's effects depend heavily on the evaluation method. Comparing trends at the MVP intervention sites in Kenya, Ghana, and Nigeria with trends in the surrounding areas yields much more modest estimates of the project's effects than the before-versus-after comparisons published thus far by the MVP. Neither approach constitutes a rigorous impact evaluation of the MVP, which is impossible to perform due to weaknesses in the evaluation design of the project's initial phase. These weaknesses include the subjective choice of intervention sites, the subjective choice of comparison sites, the lack of baseline data on comparison sites, the small sample size, and the short time horizon. The authors describe one of many ways that the next wave of the intervention could be designed to allow proper evaluation of the MVP's impact at little additional cost.
If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
Volume (Year): 3 (2011)
Issue (Month): 3 (September)
|Contact details of provider:|| Web page: http://www.tandfonline.com/RJDE20|
|Order Information:||Web: http://www.tandfonline.com/pricing/journal/RJDE20|
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Bruhn, Miriam & McKenzie, David, 2008.
"In pursuit of balance : randomization in practice in development field experiments,"
Policy Research Working Paper Series
4752, The World Bank.
- Miriam Bruhn & David McKenzie, 2009. "In Pursuit of Balance: Randomization in Practice in Development Field Experiments," American Economic Journal: Applied Economics, American Economic Association, vol. 1(4), pages 200-232, October.
- Michael Woolcock, 2009.
"Toward a plurality of methods in project evaluation: a contextualised approach to understanding impact trajectories and efficacy,"
Journal of Development Effectiveness,
Taylor & Francis Journals, vol. 1(1), pages 1-14.
- Michael Woolcock, 2009. "Towards a Plurality of Methods in Project Evaluation: A Contextualised Approach to Understanding Impact Trajectories and Efficacy," Brooks World Poverty Institute Working Paper Series 7309, BWPI, The University of Manchester.
- Kibaara, Betty & Ariga, Joshua & Olwande, John & Jayne, Thom S., 2008.
"Trends in Kenyan Agricultural Productivity: 1997-2007,"
202611, Egerton University, Tegemeo Institute of Agricultural Policy and Development.
- Kibaara, Betty & Ariga, Joshua & Olwande, John & Jayne, Thomas S., 2008. "Trends in Kenyan Agricultural Productivity: 1997-2007," Food Security Collaborative Working Papers 56117, Michigan State University, Department of Agricultural, Food, and Resource Economics.
When requesting a correction, please mention this item's handle: RePEc:taf:jdevef:v:3:y:2011:i:3:p:305-339. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Michael McNulty)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.