Some interesting reports/studies have been recently published. This was brought to my attention by Microcapital.
Microfinance’s Midlife Crisis from the Wall Street Journal , Assessing the Role of Microfinance in Fostering Adaptation to Climate Change by Shardul Agrawala and Maëlis Carraro, and Microfinance and Inequality by the Macrothink Institute written by Hisako Kai and Shigeyuki Hamori.