Over at the Circle Bastiat, Peter Klein writes:
There has been a persistent dispute among mainstream economists about the role of government housing policy, particularly the Community Reinvestment Act which was used, in the 1990s, to make banks increase their lending to particular low-income neighborhoods. Paul Krugman asserts, for example, that the “Community Reinvestment Act of 1977 was irrelevant to the subprime boom.” Actually, no. A new NBER paper(gated) on the CRA is causing quite a stir. Authored by four economists from NYU, MIT, Northwestern, and Chicago, the paper is the first to use instrumental-variables regression to distinguish changes in bank lending caused by the CRA from changes that would likely have happened anyway. (The authors use the timing of loan decisions relative to the dates of CRA audits to identify the effect of the CRA on lending.) The results suggest that CRA enforcement did, contra Krugman, lead banks to make substantially riskier loans than otherwise.