Journal of the Korean Data and Information Science Society

The Korean Data and Information Science Society (한국데이터정보과학회)
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Comparison of the forecasting models with real estate price index

주택가격지수 모형의 비교연구

  • Lim, Seong Sik (Division of General Education, SeoKyeong University)
  • 임성식 (서경대학교 교양과정부)
  • Received : 2016.10.19
  • Accepted : 2016.11.23
  • Published : 2016.11.30
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Abstract

It is necessary to check mutual correlations between related variables because housing prices are influenced by a lot of variables of the economy both internally and externally. In this paper, employing the Granger causality test, we have validated interrelated relationship between the variables. In addition, there is cointegration associations in the results of the cointegration test between the variables. Therefore, an analysis using a vector error correction model including an error correction term has been attempted. As a result of the empirical comparative analysis of the forecasting performance with ARIMA and VAR models, it is confirmed that the forecasting performance by vector error correction model is superior to those of the former two models.

주택가격은 대내외적으로 경기관련 많은 변수들에 의해 영향을 받기 때문에 다변량분석의 경우 이와 관련된 변수들간의 상호관련성을 검정하여야 한다. 그랜저 인과성 검정결과 변수들간에 서로 인과성이 있는 것으로 나타났다. 또한 변수들 사이에 공적분 존재유무를 확인한 결과 공적분이 존재하므로 오차수정항이 포함된 벡터오차수정모형을 이용하여 분석을 시도하였다. ARIMA 및 VAR 모형과의 예측력 실증비교 결과 벡터오차수정모형에 의한 예측력이 이들 두 모형에 비해 우수함을 확인할 수 있었다.

Keywords

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