{ "id": "1302.2534", "version": "v4", "published": "2013-02-11T17:05:31.000Z", "updated": "2013-09-25T06:45:43.000Z", "title": "Stationarity and ergodicity for an affine two factor model", "authors": [ "Matyas Barczy", "Leif Doering", "Zenghu Li", "Gyula Pap" ], "comment": "28 pages; the title has been changed; a mistake in the proof of Theorem 4.1 has been corrected", "categories": [ "math.PR", "q-fin.CP" ], "abstract": "We study the existence of a unique stationary distribution and ergodicity for a 2-dimensional affine process. The first coordinate is supposed to be a so-called alpha-root process with \\alpha\\in(1,2]. The existence of a unique stationary distribution for the affine process is proved in case of \\alpha\\in(1,2]; further, in case of \\alpha=2, the ergodicity is also shown.", "revisions": [ { "version": "v4", "updated": "2013-09-25T06:45:43.000Z" } ], "analyses": { "subjects": [ "60J25", "37A25" ], "keywords": [ "factor model", "unique stationary distribution", "ergodicity", "stationarity", "affine process" ], "note": { "typesetting": "TeX", "pages": 28, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1302.2534B" } } }