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Credit Quality from WikiPedia:

A credit rating estimates the credit worthiness of an individual, corporation, or even a country. It is an evaluation made by credit bureaus of a borrower’s overall credit history. A credit rating is also known as an evaluation of a potential borrower's ability to repay debt, prepared by a credit bureau at the request of the lender (Black's Law Dictionary). Credit ratings are calculated from financial history and current assets and liabilities. Typically, a credit rating tells a lender or investor the probability of the subject being able to pay back a loan. However, in recent years, credit ratings have also been used to adjust insurance premiums, determine employment eligibility, and establish the amount of a utility or leasing deposit.

A poor credit rating indicates a high risk of defaulting on a loan, and thus leads to high interest rates, or the refusal of a loan by the creditor.

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