WASHINGTON (AP) — President-elect Joe Biden has chosen former Federal Reserve Chair Janet Yellen to serve as treasury secretary, a pivotal role in which she would help shape and direct his economic policies at a perilous time, according to a person familiar with the transition plans.

Yellen, who is widely admired in the financial world, would be the first woman to lead the Treasury Department in a line stretching back to Alexander Hamilton in 1789. Her nomination was confirmed to The Associated Press by a person who spoke on condition of anonymity to discuss Biden's plans.

If confirmed as treasury secretary, Yellen would inherit a shaky U.S. economy, weakened by the pandemic recession and now in the grip of a surging viral epidemic that is intensifying pressure on businesses and individuals. Concern is rising that the economy could slide into a “double-dip” recession this winter as states and cities reimpose restrictions on businesses and consumers stay home to avoid contracting the disease.

A path-breaking figure in the male-dominated economics field, Yellen, 74, was also the first woman to serve as Fed chair, from 2014 to 2018. She later became an adviser to Biden's presidential campaign in an unusual departure for a former Fed leader.

“She will bring to the role deep economic and policymaking expertise, national and international stature, and a ... personal commitment to fostering strong labor market conditions that draw in marginalized workers,” said Krishna Guha, an analyst at investment bank Evercore ISI.

The treasury post would add another new chapter to Yellen's varied career in financial policymaking. She would represent the administration in global financial affairs and lead a sprawling department whose responsibilities range from the government's finances and tax collections to currency markets, bank regulation and the printing of money.

Yellen would also take on the formidable task of helping negotiate economic policy with Sen. Mitch McConnell, the Kentucky Republican who will remain Senate majority leader if his party wins at least one of two Senate runoff elections in Georgia in early January. Those talks would likely focus most urgently on a new stimulus package that most economists say is vital to sustaining an economic recovery.

Jaret Seiberg, a banking industry analyst at Cowen, described Yellen as a “pragmatist” who would likely pursue a relatively moderate path on banking regulation. Stock markets, which had already risen Monday, rose further after news leaked of her selection.

Yellen enjoys a close working relationship with Jerome Powell, who succeeded her as Fed chair, something that would likely improve coordination between the Fed and the Treasury and perhaps result in additional support for the economy. Powell and the current treasury secretary, Steven Mnuchin, last week publicly disagreed over Mnuchin's decision to cancel several Fed emergency lending programs at the end of this month.

Yellen has consistently favored further stimulus spending for the economy, including for state and local governments, which she has said need “substantial support" to avoid further job cuts. Such rescue aid has been a key sticking point in congressional negotiations on a stimulus package, with McConnell resisting the larger amounts sought by Democrats.

Before leading the Fed, Yellen was its vice chair for four years and before that was president of the Federal Reserve Bank of San Francisco for six years. Earlier, under President Bill Clinton, she led the president's Council of Economic Advisers, after serving a stint on the Fed's board.

Yellen is well-known on Capitol Hill after years of testifying as Fed chair to Senate committees about the economy and interest rate policy. During those years, she frequently clashed with Republican lawmakers who accused her of keeping rates too low for too long after the 2008 financial crisis. Some of them charged that Yellen and her predecessor, Ben Bernanke, had elevated the risk of runaway inflation and asset bubbles that could destabilize financial markets.

None of those fears came to pass. On the contrary, under Bernanke and Yellen — and later, under Powell — the Fed's more difficult challenge became raising inflation merely to the Fed's annual 2% target level. It has yet to do so consistently.

Yellen, a Democrat, had served only one four-year term as Fed chair when President Donald Trump decided to replace her with Powell, a Republican, despite Yellen’s desire to serve another term. That move broke a four-decade tradition of presidents allowing Fed chairs to serve at least two terms even if they had first been nominated by a president of the opposing party. After leaving the Fed, Yellen became a distinguished fellow in residence at the liberal Brookings Institution in Washington, signaling her continuing interest in financial policymaking.

Biden had said last week that his choice for treasury secretary would be “someone who I think will be accepted by all elements of the Democratic Party, progressives through the moderate coalition.”

Yellen won the support of many progressive groups during the search process, said Jeff Hauser, executive director of the Revolving Door Project, a left-leaning organization, in part because she has endorsed a carbon tax as a way to reduce the emission of greenhouse gases.

She is also an expert on unemployment and wages. Under her tenure, the central bank began shifting much of its policy focus from fighting inflation, which has been quiescent for decades, to trying to maximize employment, the second of its two congressional mandates. Yellen won praise for her attention to disadvantaged groups including the long-term unemployed. She made numerous visits to employment training centers to spotlight the need for training programs to equip people for good jobs.

When she stepped down from the Fed in early 2018, Shawn Sebastian, co-director of the Fed-Up coalition, a collection of progressive groups, called Yellen's departure “a loss for working people across the country." He hailed her efforts to take on “economic inequality, racial disparities in the economy, the role of women in the workplace and the need for more diversity at the Fed.”

Yet some progressives have also criticized Yellen for the Fed's December 2015 decision to raise its benchmark rate from near zero, where it had been pegged since late 2008 in the midst of the financial crisis. That rate hike, which caused a sharp increase in the value of the dollar, contributed to a slowdown in U.S. economic growth in 2016 and is now seen by many economists as having been premature.

Yellen is married to George Akerlof, a Nobel Prize-winning economist whom she met in a Fed cafeteria in 1977. They have one son, Robert, who is an economics professor.

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AP Economics Writer Martin Crutsinger contributed to this report.