A Bayesian Approach to Modeling Time-Varying Cointegration and Cointegrating Rank
时变协整关系与协整秩的贝叶斯建模AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要明确研究多变量协整、平稳性以及随时间改变的协整矩阵和秩,直接对应时间序列与长期关系的结构变化。
时变协整关系与协整秩的贝叶斯建模AI 解读 ↓
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A multivariate model that allows for both a time-varying cointegrating matrix and time-varying cointegrating rank is presented. The model addresses the issue that, in real data, the validity of a constant cointegrating relationship may be questionable. The model nests the submodels implied by alternative cointegrating matrix ranks and allows for transitions between stationarity and nonstationarity, and cointegrating and noncointegrating relationships in accordance with the observed behavior of the data. A Bayesian test of cointegration is also developed. The model is used to assess the validity of the Fisher effect and is also applied to equity market data.