Janet Yellen, the president of the San Francisco Federal Reserve Bank stressed that the Federal Reserve should keep interest rates as close to zero as possible for the foreseeable future.

Yellen said she’s worried that a jobless recovery is emerging as businesses have learned to get along with fewer workers. And she said falling wages will push inflation lower this year.

“For the time being, the economy still needs the support of extraordinarily low rates,” Yellen said in a speech at the University of San Diego.

“I’m not at all convinced that a V-shaped recovery is in the cards,” she added.

Yellen is one of the most influential doves among the central bank’s leadership, meaning that she has a history of being less worried than others about inflation. Some Fed bank presidents appear to be chomping at the bit to exit from the ultra-low monetary policy, but Yellen said the economy still needs the tonic from monetary stimulus.

“Such accommodative policy is appropriate, in my view, because the economy is operating well below its potential and inflation is undesirably low,” Yellen said.

Indeed, at this point, Yellen said she is more worried about deflation or falling prices. Over the past year, the personal consumption price index, excluding volatile food and energy prices, rose a modest 1.5%.

“It seems quite possible that core inflation will move even lower this year and next,” Yellen said.