, Volume 44, Issue 3, pp 227–238 | Cite as

Impact assessment of group-based credit–lending projects with controlled project placement bias and self-selection bias

  • Debadutta Kumar PandaEmail author
Research Article


A large number of microfinance impact assessment studies were conducted in different parts of the world in last two decades, but most of the impact assessment methods were put to questions. There were methodological concerns associated with both external validation and internal validation. Many microfinance impact assessment studies have suffered from issues related to counterfactual selection, project/programme placement bias and self-selection bias. To address those problems, this paper studied some of the important impact assessment frameworks. This study involved extensive literature scanning. Important impact assessment models were analysed and discussed focusing on unit of analysis, selection of impact variables, selection of comparison group and control of self-selection bias and project placement bias. The study concluded that a methodical analysis of counterfactual would help in avoiding self-selection bias and project placement bias.


Impact assessment Group-lending Microfinance project Control group Self-selection bias 


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Copyright information

© Indian Institute of Management Calcutta 2017

Authors and Affiliations

  1. 1.Economics and StrategyInstitute of Management TechnologyHyderabadIndia

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