{ "id": "1709.01691", "version": "v1", "published": "2017-09-06T06:51:18.000Z", "updated": "2017-09-06T06:51:18.000Z", "title": "Heavy tail and light tail of Cox-Ingersoll-Ross processes with regime-switching", "authors": [ "Tongtong Hou", "Jinghai Shao" ], "comment": "19 pages", "categories": [ "math.PR" ], "abstract": "This work is denoted to studying the tail behavior of Cox-Ingersoll-Ross (CIR) processes with regime-switching. One essential difference shown in this work between CIR process with regime-switching and without regime-switching is that the stationary distribution for CIR process with regime-switching could be heavy-tailed. Our results provide a theoretical evidence of the existence of regime-switching for interest rates model based on its heavy-tailed empirical evidence. In this work, we first provide sharp criteria to justify the existence of stationary distribution for the CIR process with regime-switching, which is applied to study the long term returns of interest rates. Then under the existence of the stationary distribution, we provide a criterion to justify whether its stationary distribution is heavy-tailed or not.", "revisions": [ { "version": "v1", "updated": "2017-09-06T06:51:18.000Z" } ], "analyses": { "keywords": [ "light tail", "cox-ingersoll-ross processes", "regime-switching", "stationary distribution", "heavy tail" ], "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable" } } }