Uncertainty About the Persistence of Economic Shocks
经济冲击持续性的不确定性AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要以经济产出序列的冲击持续性为对象,明确讨论 ARIMA 与向量自回归估计,因此归入时间序列及 VAR 相关方向。
经济冲击持续性的不确定性AI 解读 ↓
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The behavior of time series of economic output has been characterized in terms of the persistence of shocks. For a series generated by an autoregressive integrated moving average model, persistence is a function of the model parameters. This paper demonstrates that a careful analysis, based on the likelihood, can lead to considerably more uncertainty about persistence than is implied by the confidence intervals that are usually calculated. The estimation of persistence is also examined from a vector autoregression. In this case, nonstandard concentrated log likelihood functions are also found, leading to the conclusion that considerable care is necessary to asses uncertainty.