Nigeria’s economic slump deepened in the third quarter as oil production continued to fall and factory output was hit by a shortage of dollars. Gross domestic product in Africa’s most populous country contracted 2.2 percent in the three months through September from a year earlier, after shrinking 2.1 percent in the second quarter, the Abuja-based National Bureau of Statistics said in an e-mailed statement Monday. The median of 15 economist estimates compiled by Bloomberg was for a 2 percent contraction. The economy expanded a non-seasonally adjusted 9 percent from the second quarter, the statistics office said. Government revenue has plunged and foreign currency became more scarce with the decline of oil prices, the country’s main export, since mid-2014, and production fell as militants […]