波动性(金融)
经济
计量经济学
远期波动率
波动性风险溢价
随机波动
解释力
交易成本
波动率互换
已实现方差
隐含波动率
方差交换
时间范围
金融经济学
微观经济学
财务
哲学
认识论
作者
Jeff Fleming,Chris Kirby,Barbara Ostdiek
标识
DOI:10.1111/0022-1082.00327
摘要
ABSTRACT Numerous studies report that standard volatility models have low explanatory power, leading some researchers to question whether these models have economic value. We examine this question by using conditional meanm‐variance analysis to assess the value of volatility timing to short‐horizon investors. We find that the volatility timing strategies outperform the unconditionally efficient static portfolios that have the same target expected return and volatility. This finding is robust to estimation risk and transaction costs.
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