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Freakonomics

Experts are made and practice matters, but birthdays do too

By Stephen J. Dubner and Steven D. Levitt
May 7, 2006

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If you were to examine the birth certificates of every soccer player in next month's World Cup tournament, you would most likely find a noteworthy quirk: Elite soccer players are more likely to have been born in the first six months of the year than in the later months. (Full article: 1254 words)

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