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Ruth Porat, chief financial officer of Morgan Stanley, speaks at the annual Milken Institute Global Conference in Beverly Hills, California, U.S., on Monday, April 28, 2014. The conference brings together hundreds of chief executive officers, senior government officials and leading figures in the global capital markets for discussions on social, political and economic challenges. Photographer: Patrick T. Fallon/Bloomberg via Getty Images

Ruth Porat, chief financial officer of Morgan Stanley, speaks at the annual Milken Institute Global Conference in Beverly Hills, California, U.S., on Monday, April 28, 2014. The conference brings together hundreds of chief executive officers, senior government officials and leading figures in the global capital markets for discussions on social, political and economic challenges. Photographer: Patrick T. Fallon/Bloomberg via Getty Images