Returns to Capital in Microenterprises: Evidence from a Field Experiment
AbstractSmall and informal firms account for a large share of employment in developing countries. The rapid expansion of microfinance services is based on the belief that these firms have productive investment opportunities and can enjoy high returns to capital if given the opportunity. However, measuring the return to capital is complicated by unobserved factors such as entrepreneurial ability and demand shocks, which are likely to be correlated with capital stock. We use a randomized experiment to overcome this problem, and to measure the return to capital for the average microenterprise in our sample, regardless of whether or not they apply for credit. We accomplish this by providing cash and equipment grants to small firms in Sri Lanka, and measuring the increase in profits arising from this exogenous (positive) shock to capital stock. After controlling for possible spillover effects, we find the average real return to capital to be 5.7 percent per month, substantially higher than the market interest rate. We then examine the heterogeneity of treatment effects to explore whether missing credit markets or missing insurance markets are the most likely cause of the high returns. Returns are found to vary with entrepreneurial ability and with measures of other sources of cash within the household, but not to vary with risk aversion or uncertainty.
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Bibliographic InfoPaper provided by Institute for the Study of Labor (IZA) in its series IZA Discussion Papers with number 2934.
Length: 39 pages
Date of creation: Jul 2007
Date of revision:
Publication status: published in: Quarterly Journal of Economics, 2008, 123 (4), 1329-1372
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Other versions of this item:
- Suresh de Mel & David McKenzie & Christopher Woodruff, 2008. "Returns to Capital in Microenterprises: Evidence from a Field Experiment," The Quarterly Journal of Economics, MIT Press, vol. 123(4), pages 1329-1372, November.
- de Mel, Suresh & McKenzie, David & Woodruff, Christopher, 2007. "Returns to capital in microenterprises : evidence from a field experiment," Policy Research Working Paper Series 4230, The World Bank.
- O12 - Economic Development, Technological Change, and Growth - - Economic Development - - - Microeconomic Analyses of Economic Development
- O17 - Economic Development, Technological Change, and Growth - - Economic Development - - - Formal and Informal Sectors; Shadow Economy; Institutional Arrangements
This paper has been announced in the following NEP Reports:
- NEP-ALL-2007-08-08 (All new papers)
- NEP-DEV-2007-08-08 (Development)
- NEP-ENT-2007-08-08 (Entrepreneurship)
- NEP-EXP-2007-08-08 (Experimental Economics)
- NEP-MFD-2007-08-08 (Microfinance)
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Blog mentionsAs found by EconAcademics.org, the blog aggregator for Economics research:
- The new must-read paper for field experimenters
by Chris Blattman in Chris Blattman on 2010-12-21 02:07:32
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