---Empirical Evaluation of X-11 and Model-based Seasonal Adjustment Methods
---Empirical Evaluation of X-11 and Model-based Seasonal Adjustment Methods
复制标题
---X-11和基于模型的季节调整方法的实证评估
DOI:
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发表时间:
2007
期刊:
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通讯作者:
Stuart Scott
中科院分区:
文献类型:
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作者:
R. Tiller;Daniel Chow;Stuart Scott
For over three decades X11 has been the standard approach used to seasonally adjust time series at the Bureau of the Labor Statistics (BLS). In recent years the model based approach has gained ground as an alternative approach. This study compares X-11 and model-based seasonal adjustments for 82 series produced by the BLS. We use “X-11” to refer to the seasonal adjustment method developed by Shiskin et. al ( 1967) as implemented in the enhanced version X-12 ARIMA (Findley et. al., 1998). The model based approach we use is known as SEATS (Signal Extraction of ARIMA Time Series), originally implemented by the Bank of Spain (Gomez and Marvall, 1997). This paper was developed from a larger study conducted at BLS (Scott, Tiller, and Chow, 2007) to evaluate SEATS as a potential supplement to X11.