by. Ann Saphir, Alexandra Alper and Jonathan Spicer

Federal Reserve Chair Janet Yellen vowed Wednesday to “do all that I can” to boost a U.S. economy where unemployment is too high and inflation is too low.

“The economy continues to operate considerably short” of the central bank’s objectives of full employment and stable prices, Yellen said at a swearing-in ceremony at the central bank in Washington.

“The economy is stronger and the financial system is sounder,” added Yellen, who succeeded Ben Bernanke on Feb. 1. “We have come a long way, but we have farther to go.”

The brief comments were a broad reiteration of what she told two congressional committees last month: that the United States appears to be clawing its way back from the 2007-2009 recession but that the Fed is in no rush to tighten policy.

Speaking clear across the country, San Francisco Fed chief John Williams gave a more upbeat assessment of the economy, and suggested that rate hikes could come as soon as next year.

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