股票收益率的分布:反对稳定模型的新证据

The Distribution of Stock Returns: New Evidence Against the Stable Model

Journal of Business & Economic Statistics · 1990
被引 128
人大 AABS 4

中文导读

提出一种检验大样本是否来自稳定分布的方法,发现股票收益率整体及95%以上的个股均不服从稳定分布,对资产定价和风险管理有参考价值。

Abstract

We present a simple but effective procedure for determining whether a reasonably large sample comes from a stable population against the alternative that it comes from a population with finite higher moments. The procedure uses the fact that a stable population sample has moments of the fourth and sixth order whose magnitudes increase very rapidly as the sample size increases. This procedure shows convincingly that stock returns, when taken as a group, do not come from stable populations. Even for individual stocks, our results show that the stable-population-model null hypothesis can be rejected for more than 95% of the stocks.

股票收益分布稳定分布模型高阶矩检验有限矩假设