Microfinance has suffered from a lack of impact studies, says New York University economics professor Jonathan Morduch. Part of the problem has been donors who might not want to know the answers, he argues, adding that the Bill & Melinda Gates Foundation has incited a shift in attitude toward the issue. Morduch co-authored “Portfolios of the Poor,” a book published in early 2009, with Stuart Rutherford, Daryl Collins and Orlanda Ruthven.
View more of our interview with Jonathan Morduch.