Consistent Estimation of Multiple Breakpoints in Dependence Measures
依赖度量中多个断点的一致估计AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要明确研究时间序列依赖结构的多个断点及 AR–GARCH 过滤后的变化检测。
依赖度量中多个断点的一致估计AI 解读 ↓
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This article proposes different methods to consistently detect multiple breaks in copula-based dependence measures. Starting with the classical binary segmentation, also the more recent wild binary segmentation (WBS) is considered. For binary segmentation, consistency of the estimators for the location of the breakpoints as well as the number of breaks is proved, taking filtering effects from AR-GARCH models explicitly into account. Monte Carlo simulations based on a factor copula as well as on a Clayton copula model illustrate the strengths and limitations of the procedures. A real data application on recent Euro Stoxx 50 data reveals some interpretable breaks in the dependence structure.