{ "id": "0902.4796", "version": "v1", "published": "2009-02-27T10:48:27.000Z", "updated": "2009-02-27T10:48:27.000Z", "title": "A Berry--Esseen theorem for sample quantiles under weak dependence", "authors": [ "S. N. Lahiri", "S. Sun" ], "comment": "Published in at http://dx.doi.org/10.1214/08-AAP533 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)", "journal": "Annals of Applied Probability 2009, Vol. 19, No. 1, 108-126", "doi": "10.1214/08-AAP533", "categories": [ "math.PR" ], "abstract": "This paper proves a Berry--Esseen theorem for sample quantiles of strongly-mixing random variables under a polynomial mixing rate. The rate of normal approximation is shown to be $O(n^{-1/2})$ as $n\\to\\infty$, where $n$ denotes the sample size. This result is in sharp contrast to the case of the sample mean of strongly-mixing random variables where the rate $O(n^{-1/2})$ is not known even under an exponential strong mixing rate. The main result of the paper has applications in finance and econometrics as financial time series data often are heavy-tailed and quantile based methods play an important role in various problems in finance, including hedging and risk management.", "revisions": [ { "version": "v1", "updated": "2009-02-27T10:48:27.000Z" } ], "analyses": { "subjects": [ "60F05", "60G10", "62E20" ], "keywords": [ "sample quantiles", "berry-esseen theorem", "weak dependence", "strongly-mixing random variables", "financial time series data" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0902.4796L" } } }