Bayes model averaging of cyclical decompositions in economic time series
经济时间序列周期分解的贝叶斯模型平均AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要围绕可能非平稳的经济时间序列进行随机周期分解,并应用于工业生产与失业序列,直接对应时间序列方向。
经济时间序列周期分解的贝叶斯模型平均AI 解读 ↓
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Abstract A flexible decomposition of a time series into stochastic cycles under possible non‐stationarity is specified, providing both a useful data analysis tool and a very wide model class. A Bayes procedure using Markov Chain Monte Carlo (MCMC) is introduced with a model averaging approach which explicitly deals with the uncertainty on the appropriate number of cycles. The convergence of the MCMC method is substantially accelerated through a convenient reparametrization based on a hierarchical structure of variances in a state space model. The model and corresponding inferential procedure are applied to simulated data and to cyclical economic time series like US industrial production and unemployment. We derive the implied posterior distributions of model parameters and some relevant functions thereof, shedding light on several key features of economic time series. Copyright © 2006 John Wiley & Sons, Ltd.