Seasonal Adjustment of the Consumer Price Index

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DOI: 10.4236/jss.2017.53002    1,861 Downloads   5,583 Views  Citations
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ABSTRACT

This paper firstly introduces the significance of seasonal adjustments of the consumer price index (CPI). Then this paper focuses on the theory of seasonal adjustments and the ARIMA model with regression. Based on X-13 ARIMA-SEATS program, we develop a statistically robust method to conduct seasonal adjustment on China’s monthly CPI with respect to moving holidays, especially, Chinese Spring Festival. It is demonstrated that seasonally adjusted CPI time series are more sensitive and conducive to monitor the macro economy.

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Zhang, T. (2017) Seasonal Adjustment of the Consumer Price Index. Open Journal of Social Sciences, 5, 5-15. doi: 10.4236/jss.2017.53002.

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