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... Paris, tel: 33 (0)1 44 07 82 00; fax: 33 (0)1 44 07 82 02; email: kempf@univ- .... i) in the first stage, a partition of society is formed: stable clubs are created on the ..... to explore this link and relate the sizes of clubs in the core partition to the ..... munities", mimeo, http://post.economics.harvard.edu/faculty/alesina/papers.html.

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