Yellen: Too early to determine impact of global developments

Federal Reserve Chair Janet Yellen cautioned Thursday that global economic pressures pose risks to the U.S. economy but said it’s too soon to know whether those risks are severe enough to alter the Fed’s interest-rate policies.

Yellen said the Fed will determine at its next meeting in March how much economic weakness and falling markets around the world have hamstrung U.S. growth. And for a second day, Yellen was asked about the possibility that the Fed would use negative interest rates as a way to give the economy more support.

She repeated that the Fed had studied the prospect of deploying negative rates in 2010 but had decided then not to use them to try to boost the economy. But she said the Fed thought it should study the issue again now that other central banks, including in Europe and Japan, are using negative rates to try to step up lending and energize growth.

Read: Fed keeps rates unchanged

“In light of the experience of European countries and others that have gone to negative rates,” Yellen said, “we are taking a look at them again because we would want to be prepared in the event we needed” to nudge rates below zero to try to fuel borrowing and spending.

Yellen stressed that any Fed decision to employ negative rates in the United States was not imminent. She said that while the financial landscape has darkened since the Fed’s December rate increase, reversing course from gradually raising rates to cutting rates is “not what I consider the most likely scenario.”

The Fed chair acknowledged that the central bank has been surprised by how much energy prices have dropped and the U.S. dollar has risen in value since mid-2014.

“We have been surprised in part by those developments, and they have played a significant role in holding down inflation,” Yellen said.

Read: Yellen says pace of future rate hikes could be slowed

The Fed has tied further rate increases to further evidence that it’s moving toward achieving its goal of having inflation rise at a rate of 2% annually. For nearly four years, the Fed has fallen well short of that target, in part because of sinking energy prices and a stronger dollar, which lowers the cost of imported goods.

Yellen’s testimony Thursday to the Senate Banking Committee followed an appearance Wednesday before the House Financial Services Committee. On both days, Yellen cautioned that global pressures could depress the economy’s growth and slow the pace of Fed rate hikes.