de Mel, Suresh; McKenzie, David; Woodruff, Christopher - Institute for the Study of Labor (IZA) - 2008
In a recent randomized experiment we found mean returns to capital of between 5 and 6 percent per month in Sri Lankan microenterprises, much higher than market interest rates. But returns were found to be much higher among men than among women, and indeed were not different from zero for women....