Dynamic Mixture Vector Autoregressions With Score‐Driven Weights
具有得分驱动权重的动态混合向量自回归AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要核心是动态混合 VAR 的时变权重、过滤和预测,直接对应时间序列建模。
具有得分驱动权重的动态混合向量自回归AI 解读 ↓
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ABSTRACT We propose a novel dynamic mixture vector autoregressive (VAR) model where the time‐varying mixture weights are driven by the predictive likelihood score. Intuitively, the weight of a component VAR model is increased in the subsequent period if the current observation is more likely to be drawn from this state. The model is not limited to a specific distributional assumption and allows for straightforward likelihood‐based estimation and inference. In a Monte Carlo study, we document the model's ability to filter and predict mixture dynamics across different data‐generating processes. Moreover, we illustrate the model's empirical performance with the help of two applications.