The wild bootstrap was originally developed for regression models with heteroskedasticity of unknown form. Over the past thirty years, it has been extended to models estimated by instrumental variables and maximum likelihood, and to ones where the error terms are (perhaps multi-way) clustered....

“The Impact of Microcredit on the Poor in Bangladesh: Revisiting the Evidence,” by David Roodman and Jonathan Morduch (2014) is the most recent of a sequence of papers and postings that seeks to refute the findings of the Pitt and Khandker (1998) article “The Impact of Group-Based Credit...

Roodman (2023) (henceforth R23) re-evaluates Khanna (2023) (henceforth K23). R23 is able to replicate K23's results, highlighting no mistakes in K23's analysis. R23 argues that K23's results may be sensitive to recreating part of the underlying district-level sample, using a subset of K23's...