Efing, Matthias - 2013 - First draft: May, 2012, This version: May 16, 2013
This paper models the strategic interaction between a rating agency, a bank and a bank regulator who lacks information … about bank asset risk. The regulator can either (1) make bank capital requirements contingent on credit ratings; or (2) set … constrain high risk bank investment without simultaneously reducing overall investment volume. However, if collusion between the …