A large confirmatory dynamic factor model for stock market returns in different time zones
跨时区股票收益的大型验证性动态因子模型AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要以跨时区股票日收益的全球和洲际动态因子为核心,并应用多个市场的股权指数,直接属于金融因子模型。
跨时区股票收益的大型验证性动态因子模型AI 解读 ↓
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We propose a confirmatory dynamic factor model for a large number of stocks whose returns are observed daily across multiple time zones. The model has a global factor and a continental factor that both drive the individual stock return series. We propose two estimators of the model: a quasi-maximum likelihood estimator (QML-just-identified), and an improved estimator based on an Expectation Maximization (EM) algorithm (QML-all-res). Our estimators are consistent and asymptotically normal under the large approximate factor model setting. In particular, the asymptotic distributions of QML-all-res are the same as those of the infeasible OLS estimators that treat factors as known and utilize all the restrictions on the parameters of the model. We apply the model to MSCI equity indices of 42 developed and emerging markets, and find that most markets are more integrated when the CBOE Volatility Index (VIX) is high.