More than a hundred Democratic party lawmakers have written to Federal Reserve chair Janet Yellen complaining of a lack of diversity within the central bank system and a leadership that is “overwhelmingly and disproportionately white and male”.

The letter, signed by 11 senators and 116 representatives, calls on the Fed to do more to ensure its senior ranks reflect the country’s make-up in terms of gender, race and ethnicity, economic background and occupation. It also demands that the Fed place greater priority on securing full employment for minorities as it pursues its economic goals.

“When the voices of women, African-Americans, Latinos, and representatives of consumers and labour are excluded from key discussions, their interests are too often neglected,” the letter says. “By fostering genuine full employment, the Federal Reserve can help combat discrimination and dramatically reduce the disproportionate unemployment faced by minority populations.”

The signatories include senators Elizabeth Warren of Massachusetts, Bernie Sanders from Vermont and Kirsten Gillibrand from New York; and representatives including Maxine Waters, the ranking member of the Financial Services Committee and John Conyers from Michigan. All Democratic members of the Congressional Black Caucus put their names to the letter. It was not signed by Republican lawmakers.

The letter is the latest sign of political pressure on the Fed from both sides of the party divide. Republicans have been calling for greater Congressional scrutiny over the Fed amid persistent concerns about the ultra-loose monetary policy stance it has pursued since the financial crisis. Democrats, on the other hand, have urged Ms Yellen to maintain low interest rates in pursuit of higher employment, and in her most recent hearings before Congress Ms Yellen faced a barrage of complaints about the uneven economic progress seen between different races and ethnicities.

Eleven of the 12 regional Federal Reserve Bank presidents are white and 10 of the 12 are men. All of the 10 current voting members of the Federal Open Market Committee, which sets monetary policy, are white, while four of them are women. Members of the Fed’s Board of Governors, who rank among the top rate-setters, are selected by the president and confirmed by the Senate, but the Board of Governors has a key role in selecting the Fed’s regional bank presidents.

A spokesperson for the Federal Reserve Board said: “The Federal Reserve is committed to fostering diversity — by race, ethnicity, gender, and professional background — within its leadership ranks. To bring a variety of perspectives to Federal Reserve Bank and Branch boards, we have focused considerable attention in recent years on recruiting directors with diverse backgrounds and experiences.”

The Fed said that minority representation on its reserve bank and branch boards had increased from 16 per cent in 2010 to 24 per cent in 2016, while the proportion of women directors has risen from 23 per cent to 30 per cent over the same period. Some 46 per cent of all directors are “diverse in terms of race and/or gender”, the Fed added.

The Fed in December lifted interest rates for the first time in nearly a decade. It has since kept them on hold as it weighs up conflicting evidence about the strength of the recovery. Referring to monetary policy, the letter from the lawmakers urges Ms Yellen to “give due consideration to the interests and priorities of the millions of people around the country who still have not benefited from this recovery”.

Jesse Ferguson, a Clinton campaign spokesman, said: “The American people should have no doubt that the Fed is serving the public interest. That’s why Secretary Clinton believes that the Fed needs to be more representative of America as a whole as well as that commonsense reforms — like getting bankers off the boards of regional Federal Reserve banks — are long overdue.”

By Sam Fleming

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