The Korean Journal of Applied Statistics (응용통계연구)

The Korean Statistical Society (한국통계학회)
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Seasonal adjustment in Korean economic statistics and major issues

우리나라 경제통계의 계절조정 현황과 주요 쟁점

  • Lee, Geung-Hee (Department of Information Statistics, Korea National Open University)
  • 이긍희 (한국방송통신대학교 정보통계학과)
  • Received : 2015.12.22
  • Accepted : 2016.01.08
  • Published : 2016.02.29
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Abstract

Seasonal adjustment is useful to provide a better understanding of underlying trends in Korean economic statistics. The seasonal component also includes calendar effects such as Seol and Chuseok. Most popular seasonal adjustment methods are X-12-ARIMA of the U.S. Bureau of the Census and TRAMO-SEATS of the Bank of Spain. Statistics Korea and the Bank of Korea compile seasonally adjusted series of several Korean economic statistics. This paper illustrates basic principles for seasonal adjustment and the current status of seasonal adjustment in Korea based on previous research. In addition, several issues on seasonal adjustment are addressed.

경제통계에서 기조적 변동인 추세변동과 순환변동을 살펴보려면 경제통계에서 달력변동을 포함한 계절변동을 적절히 제거하는 계절조정이 필요하다. 계절조정방법으로는 전년동기대비 증감률과 같이 간편한 방식이 있지만 통계작성기관에서는 이동평균 또는 시계열모형을 기반으로 한 X-12-ARIMA 또는 TRAMO-SEATS를 이용하여 계절조정계열을 작성한다. 통계청과 한국은행은 X-12-ARIMA 또는 X-13ARIMA-SEATS에 우리나라 고유의 명절, 공휴일 등을 추가로 보정한 계절조정방법을 만들고 이를 이용하여 우리나라 주요 경제통계의 계절조정계열을 작성, 공표하고 있다. 본 논문에서는 그 동안의 연구를 바탕으로 계절조정의 기본 원리와 우리나라의 계절조정 현황을 정리하고, 월별 산업생산지수(제조업)와 취업자의 계절조정을 통해 계절조정의 주요 쟁점을 정리하였다.

Keywords

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