(CNBC) Ratings firm Egan-Jones cut its credit rating on the U.S. government to “AA-” from “AA,” citing its opinion that quantitative easing from the Federal Reserve would hurt the U.S. economy and the country’s credit quality.

The Fed on Thursday said it would pump $40 billion into the U.S. economy each month until it saw a sustained upturn in the weak jobs market. (Read more: Fed’s ‘QE Infinity’ — Four Things That Could Go Wrong)

In its downgrade, the firm said that issuing more currency and depressing interest rates through purchasing mortgage-backed securities does little to raise the U.S.’s real gross domestic product, but reduces the value of the dollar.

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