The business of credit ratings began in the United States in the early 1900s. Over time, credit ratings have gradually taken on an expanding role, both in the United States and abroad and in official financial market regulation as well as in private capital market decisions. However, in 1999 the Bank for International Settlements (through its Committee on Banking Supervision) proposed rule changes that would provide an explicit role for credit ratings in determining a bank's required regulatory risk capital. Once implemented, this BIS proposal (often referred to as Basel 2) would vastly...