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基于不同风险度量的投资组合模型的实证比较
引用本文:徐绪松,王频,侯成琪.基于不同风险度量的投资组合模型的实证比较[J].武汉大学学报(理学版),2004,50(3):311-314.
作者姓名:徐绪松  王频  侯成琪
作者单位:武汉大学,商学院技术经济及管理研究所,湖北,武汉,430072
基金项目:国家教育部博士点基金资助项目(01JB630009)
摘    要:提出以收益一波动比率为标准,对基于不同风险度量的投资组合模型进行实证比较,并分别以风险弹性和收益一波动比率为比较标准,以模拟退火算法作为投资组合模型的求解算法,对均值一方差模型、绝对离差模型和半方差模型进行了实证比较分析.结果表明,在我国股票市场上,构造投资组合时,半方差模型优于均值一方差模型和绝对离差模型,而绝对离差模型又优于均值一方差模型.

关 键 词:投资组合模型  风险度量  收益-波动比率  风险弹性
文章编号:1671-8836(2004)03-0311-04
修稿时间:2003年1月6日

The Empirically Comparative of Portfolio Selection Models Based on Different Measure of Investment Risk
XU Xu-song,WANG Pin,HOU Cheng-qi.The Empirically Comparative of Portfolio Selection Models Based on Different Measure of Investment Risk[J].JOurnal of Wuhan University:Natural Science Edition,2004,50(3):311-314.
Authors:XU Xu-song  WANG Pin  HOU Cheng-qi
Abstract:This article suggests to use reward-to-variability ratio to compare portfolio models based on different risk measurement. Using risk elasticity and reward-to-variability ratio, and using simulated annealing algorithm to compute portfolio models, this article compares three portfolio selection models empirically: mean-variance model, absolute deviation model and semi-variance model. The empirical research shows that semi-variance model is the best model in these three portfolio selection models and absolute deviation model is better than mean-variance model in China securities market.
Keywords:portfolio model  risk measurement  reward-to-variability ratio  risk elasticity
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