Topic summary
Debts

Extracted from the Wikipedia article Debt.
Role of rating agencies
Debts owed by governments and private corporations may be rated by rating agencies, such as Moody's, Standard & Poor's, Fitch Ratings, and A. M. Best. The government or company itself will also be given its own separate rating. These agencies assess the ability of the debtor to honor his obligations and accordingly give him or her a . Moody's uses the letters Aaa Aa A Baa Ba B Caa Ca C, where ratings Aa-Caa are qualified by numbers 1–3. S&P and other rating agencies have slightly different systems using capital letters and +/- qualifiers. Thus a government or corporation with a high rating would have Aaa rating.