A trader follows the prices of shares on a computer screen at the Dubai bourse, on January 17, 2016 Share prices in the energy-rich Gulf states nosedived following the sharp decline in oil prices and the expected rise in Iranian crude exports after the sanctions imposed on it were lifted under Tehran's historic nuclear deal with global powers. / AFP / MARWAN NAAMANI (Photo credit should read MARWAN NAAMANI/AFP/Getty Images)
