SF Fed's Yellen sees risks to global growth

Federal Reserve Bank of San Francisco president Janet Yellen said on Saturday 28 April risks to the global economy maintaining "exceptionally strong" growth include a slowing US economy and unbalanced trade flows.

One risk was the US, where "there is potential for a downturn that could have negative spillovers around the world".

"A short period of below-trend growth is likely to be helpful in mitigating inflation risk here," Yellen said.

"It would be wrong to assume that the US economy and the r