A poorly thought out and poorly timed monetary policy sends Nigeria into a tailspin. Even for an administration notorious for its capricious decision-making, the outgoing Buhari government’s decision to implement a complex currency-swap policy on the eve of a national election has been something of a head-scratcher. To say that the policy is proving very costly is to put it mildly. While both President Muhammadu Buhari and Central Bank of Nigeria (CBN) Governor Godwin Emefiele remain...