Quantile estimation in ultra-high frequency financial data: a comparison between parametric and semiparametric approach

被引：0
|
作者：
Paola Zuccolotto
机构：
[1] Universitá degli Studi di Brescia,Dipartimento Metodi Quantitativi
来源：
Statistical Methods and Applications | 2003年 / 12卷 / 2期
关键词：
Ultra-high frequency data; ACD models; quantiles estimation; distribution free sample random variables;
D O I：
10.1007/s10260-003-0058-y
中图分类号：
学科分类号：
摘要：
In the context of ACD models for ultra-high frequency data different specifications are available to estimate the conditional mean of intertrade durations, while quantiles estimation has been completely neglected by literature, even if to trading extent it can be more informative. The main problem arising with quantiles estimation is the correct specification of durations’ probability law: the usual assumption of Exponentially distributed residuals, is very robust for the estimation of parameters of the conditional mean, but dramatically fails the distributional fit. In this paper a semiparametric approach is formalized, and compared with the parametric one, deriving from Exponential assumption. Empirical evidence for a stock of Italian financial market strongly supports the former approach.
引用
收藏
页码：243 / 257
页数：14
相关论文
共 50 条
12345