Kaplan said he expects the U.S. unemployment rate to remain elevated at 9% at the end of the year, but noted it could be lower if businesses and consumers take steps to control the virus. The unemployment rate in July was 10.2%.
"If we don't follow that, while people may feel freer, the economy will grow slower," Kaplan said.
Referring to the Fed's Main Street Lending Program, which is meant to carry small and medium-sized businesses through the crisis, Rosengren said that low early use of the program was not a sign of failure and that more businesses may turn to the facility in the fall if the economy worsens.