Bubb, Ryan; Kaufman, Alex - 2011 - This version: August 30, 2011
Mortgage originators use credit score cutoff rules to determine how carefully to screen loan applicants. Recent … research has hypothesized that these cutoff rules result from a securitization rule of thumb. Under this theory, an observed … jump in defaults at the cutoff would imply that securitization led to lax screening. We argue instead that originators …