Ray Dalio (born August 1, 1949) is an American businessman and founder of the investment firm Bridgewater Associates. In 2012, Dalio appeared on the annual Time 100 list of the 100 most influential people in the world. In 2011 and 2012 he was listed by Bloomberg Markets as one of the 50 Most Influential people. Institutional Investor’s Alpha ranked him No. 2 on their 2012 Rich List. According to Forbes he is the 31st richest person in America and the 88th richest person in the world with a net worth of $10 billion as of March 2012.
In 2007, Ray Dalio predicted the global financial crisis,  and in 2008 published an essay, "How the Economic Machine Works; A Template for Understanding What is Happening Now", which explained his model for the economic crisis. He self-published a 123 page volume called Principles, in 2011, which outlined his logic and personal philosophy for investments and corporate management based on a lifetime of observation, analysis and practical application through his hedge fund. In 2013 Dalio began sharing his "investment secrets" and economic theories on YouTube via a 30 minute animated video which he narrates, called How The Economic Machine Works.