There's a beautiful 20-year-old citation that doesn't map to anything that he's saying and seems from the abstract to be critical of microfinance as an enterprise.
This post brought to you by the Grameen Bank guy apparently being put in charge in Bangladesh? His bank said they had to charge 15% interest on microloans to break even and people were struggling to see the benefits back in 1998.
https://harpers.org/archive/2016/04/nor-a-lender-be/
Hillary Clinton and her ilk were heavily involved in pushing microloans. Pierre Omidyar, (was? still is?) a major investor in The Intercept owned a Microloan Co that had people killing themselves over the harassment to repay.
(Cw:suicide) https://www.businessinsider.com/hundreds-of-suicides-in-india-linked-to-microfinance-organizations-2012-2