{
  "id": "1307.7168",
  "version": "v2",
  "published": "2013-07-26T21:09:59.000Z",
  "updated": "2017-12-06T13:53:58.000Z",
  "title": "The Necessity of Nowhere Equivalence",
  "authors": [
    "Wei He",
    "Yeneng Sun"
  ],
  "comment": "34 pages",
  "categories": [
    "math.PR"
  ],
  "abstract": "We prove some regularity properties (convexity, closedness, compactness and preservation of upper hemicontinuity) for distribution and regular conditional distribution of correspondences under the nowhere equivalence condition. We show the necessity of such a condition for any of these properties to hold. As an application, we demonstrate that the nowhere equivalence condition is satisfied on the underlying agent space if and only if pure-strategy Nash equilibria exist in general large games with any fixed uncountable compact action space.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2013-07-26T21:09:59.000Z",
      "abstract": "We prove some regularity properties (convexity, closeness, compactness and preservation of upper hemicontinuity) for distributions and regular conditional distributions of correspondences under the nowhere equivalence condition. We show the necessity of the nowhere equivalence condition when any of these properties holds.",
      "comment": "20 pages",
      "journal": null,
      "doi": null
    },
    {
      "version": "v2",
      "updated": "2017-12-06T13:53:58.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "equivalence condition",
      "regular conditional distributions",
      "properties holds",
      "regularity properties",
      "upper hemicontinuity"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 34,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2013arXiv1307.7168H"
    }
  }
}