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http://dx.doi.org/10.6106/KJCEM.2015.16.2.046

A Study on the Statistical Continuity of Electrical Construction Cost Index Applied Chain Method  

Park, Houng-Hee (Electrical Industry Research Institute of Korea)
Publication Information
Korean Journal of Construction Engineering and Management / v.16, no.2, 2015 , pp. 46-53 More about this Journal
Abstract
Electrical construction cost index is composed of the cost of albor and material. The producer price index is used to the cost of material. The Bank of Korea restructured the formation method and the basic period of the producer price index in 2013. Because fixed-weighted method can't faithfully reflect industrial structure changes. The weighted value and price index of fixed-weighted method is fixed on the basicp eriod. Electrical construction cost index is changed from fixed-weighted method to chain-weighted method in september 2014, because of these on the need. But the change of organization in formation method changes the weighted value. So there is the need of analysis about the statistical continuity of electrical construction cost index. This study is focused on the time series analysis between fixed-weighted and chain-weighted electrical construction cost index. We uses unit root test, cointegration test, regression analysis of long and short term equation, fitness for the estimation of static forecast as time series analysis. We verify that chain-weighted electrical construction cost index can be replaced to fixed-weighted construction cost index accounting analyses result. So users of it recognize that chain-weighted electrical construction cost index has statistical continuity.
Keywords
Statistical Continuity; Chain-Weighted Method; Fixed-Weighted Method; Electrical Construction Cost Index;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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