He called her one of the nation's foremost（最重要的） economists¹ and policy makers².

 

Ms Yellen said if confirmed by the Senate she would do her utmost "to promote maximum employment, stable prices and a stable financial system". 

 

She said more needed to be done to strengthen the US economy although progress had been made recently.

 

The president praised Ms Yellen's ability to build consensus³ and listen to competing views.

 

He added that she was "committed to increasing employment and understands the human costs when Americans can't find a job". 

 

If the nomination⁴ is confirmed by the US Senate, Ms Yellen, 67, would replace Ben Bernanke, who has held the post for eight years. 

 

She has been his deputy for the past two years, and would become the first woman to head the Federal Reserve.

 

She has taught at Harvard University and the London School of Economics, as well as holding a series of senior administrative⁵ positions in the US.

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