The Dollar's Comeback: What Investors Should Know

The greenback's sudden strength against key currencies may reflect expectations of overseas economic weakness, not confidence in U.S. growth

The slumping U.S. dollar has resulted in the best of times for foreign tourists in the U.S.—and for U.S. outfits that export their goods. Keeping up the Dickensian conceit, it's also meant the worst of times for U.S. consumers' purchasing power.

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