Ann Rutledge and Robert E. Litan: “The failure of credit ratings agencies to do their job – warn investors of the true risks entailed by the subprime mortgage securities they rated – was at the heart of the financial crisis. Policy makers since have wrestled with how to “fix” the ratings process going forward. Although the Securities and Exchange Commission has required the agencies to disclose more of their methodology, the ratings process is still less than transparent. The issuer-pay rating agency business model has been criticized as a central cause and new agencies designated by the SEC after 2008 moved away from this model, though they have since moved back. Various additional ideas to fix the system have been put forward but none has been adopted: randomizing the choice of ratings agency, or replacing private ratings with those of a public agency, such as the Securities and Exchange Commission.”
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