The Effects of Asymmetric Filters on Seasonal Factor Revisions
非对称滤波器对季节因子修订的影响AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要直接研究经济指标的季节调整、移动平均滤波与频谱;预测滤波器的出现不足以另归预测方向。
非对称滤波器对季节因子修订的影响AI 解读 ↓
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Recent data seasonally adjusted by moving average methods are subject to revisions due to differences in the properties of the linear filters for the same seasonal adjustment when later data become available. This article introduces a measure of the total revision associated with the concurrent and forecasting seasonal filters and applies it to the Census Method II-X-11 variant and the X-11-ARIMA method. To consider the fact that the spectrum of many economic indicators tends to have higher peaks at the lower seasonal frequencies than at the higher, the revision measures are calculated both over all the seasonal frequencies and over selected seasonal frequency intervals.