Not too long ago, Bill Easterly and Justin Lin squared off at an event at the World Bank over the wisdom of industrial policy in developing countries. While I am sympathetic to Bill's position, judging by the mood of the crowd in the room, I would have to call the debate a tie.
Bill has returned for round two with a new working paper that formalizes some of the arguments he made during that debate. In the Power of Exports, the New York University Professor (and now avid and entertaining Twitterer) points out that tiny Fiji dominates the market for exports to the U.S. in the category of "Women's, girl's suits, of cotton, not knit." More generally, the market for exports tends to be dominated in each country by a few big hits (and what's more, to a particular importing country), whether women's cotton suits or "ceramic bathroom kitchen sanitary items not porcelain." Mathematically, this is described by a power law, where the likelihood of observing a particular value decreases exponentially with the size of that value.
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