夏普比率时变特征的多重分形分析

被引:10
作者
宋光辉 [1 ]
吴栩 [1 ]
许林 [2 ]
机构
[1] 华南理工大学工商管理学院
[2] 华南理工大学经济与贸易学院
基金
高等学校博士学科点专项科研基金;
关键词
夏普比率; 时变特征; 多重分形; 量化分析;
D O I
暂无
中图分类号
F830.59 [投资];
学科分类号
020219 [财政学(含:税收学)];
摘要
夏普比率的时变特征将给资产投资组合构建带来很大的不确定性。在资产收益率及其波动序列呈现分形特征的背景下,利用多重分形的相关方法对夏普比率的统计特征进行了刻画,并对其多重分形程度进行了量化分析。结果显示,夏普比率时变特征是非线性的,呈现多重分形特征,其成因是由相关多重分形与分布多重分形共同导致。在此基础上,提出了一种修正夏普比率的猜想。为应用夏普比率评价基金业绩、构建有效投资组合等奠定了理论与方法基础。
引用
收藏
页码:109 / 118
页数:10
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