Credit score cutoff rules result in very similar potential borrowers being treated differently by mortgage lenders. Recent research has used variation induced by these rules to investigate the connection between securitization and lender moral hazard in the recent financial crisis. However, the...

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...

Credit score cutoff rules result in very similar potential borrowers being treated differently by mortgage lenders. Recent research has used variation induced by these rules to investigate the connection between securitization and lender moral hazard in the recent financial crisis. However, the...

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...

Compared with other types of policy, regulation is very persistent, even when inefficient. We propose an explanation for regulatory persistence based on regulatory fog, the phenomenon by which regulation obscures information about the effects of deregulation. We construct a dynamic model of...

A growing literature exploits credit score cutoff rules used by mortgage lenders as a natural experiment to estimate the moral hazard effect of securitization on underwriting. This research design is premised on the assumption that these cutoff rules are a response by lenders to securitization...