Ray Dalio is the billionaire founder of the world's largest hedge fund, Bridgewater Associates. Last year he proclaimed that American capitalism had to be reformed. Now he tells Business Insider that people are misinterpreting that as a call for wealth redistribution, rather than for increasing the nation's productivity. Productivity, or how efficiently a country is using capital and labor to create value, has been on a decline in America since 2004, and has been especially low since the financial crisis.