Michael Porter, Business Analyst
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Freakonomics Radio, America's Hidden Duopoly (Podcast)
Stephen J Dubner talks with Michael Porter Michael Porter, Business Analyst and Katherine Gehl Katherine Gehl about how the late 20-teens American Democrat and Republican party interaction acts like a duopoly.
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Five Forces of Competitiveness
Michael Porter, Business Analyst outlines five forces that determine how competitive (not-prone-to-monopoly) a market or industry will be: