Ray Dalio, the founder of Bridgewater Associates, the world's largest hedge fund, says Modern Monetary Theory may be the future of US economic theory. MMT has been proposed by Alexandria Ocasio-Cortez as one way to fund her Green New Deal. Critics of MMT have slammed it as a misguided policy that could end in an inflationary spiral. Visit Markets Insider's homepage for more stories. Ray Dalio, the founder of Bridgewater Associates, the world's largest hedge fund, says something like Modern Monetary Theory (MMT), the controversial economic theory championed by Rep. Alexandria Ocasio-Cortez, could actually happen.