The U.S. central bank has shifted policy and now will let inflation rise to allow the economy to produce more jobs for the benefit of all workers, but especially lower-income families, Federal Reserve Chair Jerome Powell said Thursday. 

The change means inflation can stay above the 2.0 percent target "for some time" before the Fed will need to act by raising interest rates, Powell said in a speech. The aim is to correct the "shortfalls" in achieving the Fed's goal of maximum employment, and a recognition that with changes in the global economy, a tight job market does not necessarily drive prices higher. 

"This change reflects our appreciation for the benefits of a strong labor market, particularly for many in low- and moderate-income communities," he said, adding that the Fed is prepared to use "our full range of tools to support the economy."

Prior to the coronavirus pandemic, the US unemployment rate had hovered near 50-year lows at 3.5 percent, which brought many people back into the workforce as firms struggled to fill open positions. 

The policy shift, though telegraphed in recent statements, is a significant change for the Fed and central banking more generally, as inflation for decades has been the economic villain to be stamped out at every turn.

(Cover: CFP file photo)