Dennis Gartman, editor of the Gartman Letter, says central bank powers are being diminished by the modern world. Prior to that, Rob Carnell, ING's chief international economist, says he expects tougher trade policy from Trump than previously thought. Franziska Ohnsorge, the World Bank's lead economist, says investment growth in emerging markets dropped to 3.4 percent in 2015 from 10 percent in 2010.