>>> 经济学
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We consider the problem of utilizing human power to categorize a large number of objects.In this problem, we are given an initial catego-ry hierarchy and a set of objects, and our goal is to find the ...
Recently, several new pari-mutuel mechanisms have been introduced to organize markets for contingent claims. Hanson [7] introduced a market maker derived from the logarithmic scoring rule, and later C...

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