Goldman Sachs Asks How Yellen Can Raise Rates Amid Currency Wars

Gary D. Cohn, president and chief operating officer of Goldman Sachs Group Inc.

Photographer: Jason Alden/Bloomberg
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Janet Yellen may have to fight in the global currency war, whether she wants to or not.

The dollar is on a tear, rising to the highest in more than a decade, in part because of the Federal Reserve’s plans to raise interest rates this year. Money is flowing to the U.S., where the economy looks pretty good as Europe battles deflation and oil-dependent developing nations sputter as commodities slump.