Janet Yellen is an American economist who has been serving as the 78th United States secretary of the treasury since January 2021. She is the first woman to hold that post, as well as the chair of the Federal Reserve, which she held from 2014 to 2018. Prior to that, she held the Vice Chair of the Federal Reserve between 2010 and 2014. She also served as the chair of President Bill Clinton's Council of Economic Advisers in 1997-99 and oversaw a landmark report on gender pay gap that concluded that the disparity was not explained by productivity and must constitute discrimination in the workforce. Yellen, who is considered a "dove" on monetary policy for being more concerned with unemployment than with inflation, had successfully convinced Federal Reserve Chairman Alan Greenspan against committing to a zero-inflation policy in 1996, when she was a member of the Federal Reserve Board of Governors. She served as a distinguished fellow in residence for the Brookings Institution when President Donald Trump refused to re-nominate her for another term as Federal Reserve chairwoman. She has also held academic posts in various prestigious institutions including Harvard University, London School of Economics, and Haas School of Business at the University of California, Berkeley, where she is also professor emeritus.