WASHINGTON -- President Donald Trump's unusual expression of concern about the dollar "getting too strong" suggests that he seeks to use currency policy as a tool to extract concessions and cooperation from such countries as China and Japan.
Since the greenback is key to global trade, any currency-related comments from the American president reverberate throughout the world economy. Heads of government in the U.S., Japan and Europe generally avoid talk about exchange rates, leaving it to their finance ministers.
