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medals? Why does China win 6% of the medals even though it has 1/5 of the world's population? We consider the role of …
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To prepare for the 2008 Olympic Games, China adopted a number of radical measures to improve air quality. Using officially reported air pollution index (API) from 2000 to 2009, we show that these measures improved the API of Beijing during and after the Games, but 60% of the effect faded away by...
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World Cup, since such activities have considerable cost and seem to yield few tangible benefits. These doubts are rarely …
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Starting in 2009, the German state of Saxony distributed sports club membership vouchers among all 33,000 third graders … sports club membership, physical activity, overweightness, or motor skills …
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