Emerging economies are pushing to end the dollar’s dominance. But what’s the alternative?

 Business has vanished at Kingsley Odafe’s clothing shop in Nigeria’s capital, forcing him to lay off three employees.

One culprit for his troubles stands out: The U.S. dollar’s strength against the Nigerian currency, the naira, has pushed the price of garments and other foreign goods beyond the reach of local consumers. A bag of imported clothes costs three times what it did two years ago. The price these days is running around 350,000 naira, or $450.