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“His view is that it isn’t a sign that the economy is falling apart,” Mr. Edelstein said.

The Fed’s policy committee has been split between those who favor doing everything possible to strengthen the economy and reduce unemployment and those more concerned about inflation risks.

On Wednesday, Janet Yellen, the vice chairman of the Fed, Dennis Lockhart, the head of the Atlanta regional Federal Reserve Bank, and John Williams, president of the San Francisco Fed bank, all suggested that the central bank might need to do more to provide support.

But Rep. Kevin Brady, Texas Republican, warned at Thursday’s hearing against more bond buying. He and other critics worry that ever-lower borrowing rates could eventually ignite inflation.

“It is my belief that the Fed has done all that it can do and has perhaps done too much,” said Mr. Brady, vice chairman of the committee.