Jim O'Sullivan is the Chief U.S. Economist at High Frequency Economics. He is valued by traders and investors for successfully combining broad macro analysis with expertise in the data and events that set the tone for financial markets from week to week. According to MarketWatch, he is the "most accurate forecaster in America over the past 10 years." He was MarketWatch Forecaster of the Year for 2004, 2006, 2008, 2011, 2012, 2013 and 2014, seven of the 11 years since the award was created. Ranking is based on accuracy in projecting U.S. economic indicators, with virtually all Wall Street economists tracked. He has been MarketWatch Forecaster of the Month twelve times, most recently in January 2015. O'Sullivan has been co-ranked as top U.S. economic analyst three times in Institutional Investor's survey of U.S. fixed-income investors, and he has been ranked among the top three analysts five times. Prior to joining High Frequency Economics, O'Sullivan served as Chief Economist at MF Global, where he built the firm's global economics department. He was Senior U.S. Economist at UBS from 2001 to 2009. O'Sullivan began his career at J.P. Morgan in 1985, where he authored the U.S. section of Global Data Watch, the firm's flagship publication. He is the editor and lead author of Data Decoder: An Investor's Guide to the U.S. Economy, a guidebook for tracking the U.S. economy, published in 2002. O'Sullivan earned an M.A. in economics from Queen's University in Kingston, Ontario. He holds a B.A. in economics from Trinity College in Dublin, where he was named a Scholar of the University.