Zachary KarabellZachary Karabell is an author, money manager, commentator, and president of River Twice Research, where he analyzes economic and political trends. Educated at Columbia, Oxford, and Harvard, where he received his PhD, Karabell has written eleven previus books. He is a regular commentator on CNBC, MSNBC, and CNN. He writes the weekly "Edgy Optimist" column for Reuters and The Atlantic, and is a contributor to such publications as The Daily Beast, Time, The Wall Street Journal, The New Republic, The New York Times, and Foreign Affairs. Read More Read Less