Credit rating agencies and the subprime crisis (original) (raw)

Credit rating agencies (CRAs)—firms which rate debt instruments/securities according to the debtor's ability to pay lenders back—played a significant role at various stages in the American subprime mortgage crisis of 2007–2008 that led to the great recession of 2008–2009.The new, complex securities of "structured finance" used to finance subprime mortgages could not have been sold without ratings by the "Big Three" rating agencies—Moody's Investors Service, Standard & Poor's, and Fitch Ratings. A large section of the debt securities market—many money markets and pension funds—were restricted in their bylaws to holding only the safest securities—i.e. securities the rating agencies designated "triple-A". The pools of debt the agencies gave their highest ratings to included over three trillio