Bruce Corman Norbert Greenwald (born August 15, 1946)[1] is an American economist and professor at Columbia University's Graduate School of Business and an advisor at First Eagle Investment Management.
He is, among others, the author of the books Value Investing: from Graham to Buffett and Beyond and Competition Demystified: A Radically Simplified Approach to Business Strategy.
He has been referred to by The New York Times as "a guru to Wall Street's gurus"[2] and is a recognized authority on value investing, along with additional expertise in productivity and the economics of information.
Before arriving at Columbia in 1991, Greenwald was a research economist at Bell Laboratories and later Bell Communications Research, and an assistant professor at Harvard Business School.
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