Credit rating agencies have been under the spotlight since the beginning of the current financial crisis. They failed in their assessment of US residential mortgage- based securities in the mid-2000s. Nevertheless, investors generally consider credit ratings useful to help form their views on...

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...