The Central Bank of Nigeria is close to unveiling a new foreign-exchange policy and an announcement could come as soon as this week, according to a person who attended a meeting between Governor Godwin Emefiele and bankers. The regulator will probably move to a dual exchange-rate system and make an announcement in a circular to banks, said the person, who asked not to be identified as the talks were private. While the central bank is still working out details, it is considering a trading band around a new, weaker interbank rate, said the person, who attended the meeting on June 9 in the capital, Abuja. It may also reinstate a minimum holding period for foreign investors buying naira bonds, they said. Emefiele has faced calls for more than a year to devalue the currency, as other oil exporters from Russia to Kazakhstan and Angola have done amid a rout […]