多元化(营销策略)
相关性
索引(排版)
风险溢价
联合概率分布
计量经济学
经济
金融经济学
数学
业务
统计
计算机科学
几何学
万维网
营销
作者
Oleg Bondarenko,Carole Bernard
标识
DOI:10.1017/s0022109023000960
摘要
Abstract We propose a novel model-free approach to obtain the joint risk-neutral distribution among several assets that is consistent with options on these assets and their weighted index. We implement this approach for the nine industry sectors comprising the S&P 500 index and find that their option-implied dependence is highly asymmetric and time-varying. We then study two conditional correlations: when the market moves down or up. The risk premium is strongly negative for the down correlation but positive for the up correlation. Intuitively, investors dislike the loss of diversification when markets fall, but they actually prefer high correlation when markets rally.
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