Summary The market for ratings suffers from several inefficiencies: asymmetric information and moral hazard lead to conflicts of interest and principal-agent-problems. Moreover, network externalities and economies of scale lead to a lack of competition in the market for ratings. There is...

The market for ratings suffers from several inefficiencies: asymmetric information and moral hazard lead to conflicts of interest and principal-agent-problems. Moreover, network externalities and economies of scale lead to a lack of competition in the market for ratings. There is empirical...