Nobel-Prize-winning economist Paul Krugman argues that business leaders need to understand the differences between economic policy on the national and international scale and business
strategy on the organizational scale. Economists deal with the closed system of a national economy, whereas executives live in the open-system world of business. Moreover, economists know
that an economy must be run on the basis of general principles, but businesspeople are forever in search of the particular brilliant strategy. Krugman’s article serves to elucidate the world
of economics for businesspeople who are so close to it and yet are continually frustrated by what they see. Since 1922,Harvard Business Review has been a leading source of breakthrough
management ideas-many of which still speak to and influence us today. The Harvard Business Review Classics series now offers readers the opportunity to make these seminal pieces a part of
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