ISSN:
1573-6946
Keywords:
GARCH
;
persistence
;
skewness
;
stable Paretian distribution
;
volatility
Source:
Springer Online Journal Archives 1860-2000
Topics:
Economics
Notes:
Abstract We investigate alternative unconditional and conditional distributional models for the returns on Japan's Nikkei 225 stock market index. Among them is the recently introduced class of ARMA-GARCH models driven by α-stable (or stable Paretian) distributed innovations, designed to capture the observed serial dependence, conditional heteroskedasticity and fat-tailedness present in the return data. Of the eight entertained distributions, the partially asymmetric Weibull, Student's t and asymmetric α-stable present themselses as the most viable candidates in terms of overall fit. However, the tails of the sample distribution are approximated best by the asymmetric α-stable distribution. Good tail approximations are particularly important for risk assessments.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1010016831481
