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Common characterizations of the untrapped set and the top cycle |
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| Authors: | Nicolas Houy |
| Affiliation: | 1.CNRS—Department of Economics,Ecole Polytechnique,Paris,France |
| Abstract: | We give some characterizations for both the untrapped set and the top cycle choice functions. We link these characterizations with the well-known characterization of the maximal elements choice function. Our characterizations strongly rely on the notion of “two-tier domination”. |
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