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http://dx.doi.org/10.11108/kagis.2012.15.1.043

A Comparative Study on the Goodness of Fit in Spatial Econometric Models Using Housing Transaction Prices of Busan, Korea  

Chung, Kyoun-Sup (Dept. of Public Admin. Pukyong National University)
Kim, Sung-Woo (Institute of Public Policy, Pukyong National University)
Lee, Yang-Won (Dept. of Spatial Information Engineering, Pukyong National University)
Publication Information
Journal of the Korean Association of Geographic Information Studies / v.15, no.1, 2012 , pp. 43-51 More about this Journal
Abstract
The OLS(ordinary least squares) method is widely used in hedonic housing models. One of the assumptions of the OLS is an independent and uniform distribution of the disturbance term. This assumption can be violated when the spatial autocorrelation exists, which in turn leads to undesirable estimate results. An alterative to this, spatial econometric models have been introduced in housing price studies. This paper describes the comparisons between OLS and spatial econometric models using housing transaction prices of Busan, Korea. Owing to the approaches reflecting spatial autocorrelation, the spatial econometric models showed some superiority to the traditional OLS in terms of log likelihood and sigma square(${\sigma}^2$). Among the spatial models, the SAR(Spatial Autoregressive Models) seemed more appropriate than the SAC(General Spatial Models) and the SEM(Spatial Errors Models) for Busan housing markets. We can make sure the spatial effects on housing prices, and the reconstruction plans have strong impacts on the transaction prices. Selecting a suitable spatial model will play an important role in the housing policy of the government.
Keywords
Spatial Autocorrelation; Spatial Econometrics; ESDA(Exploratory Spatial Data Analysis); Housing Transaction Price;
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Times Cited By KSCI : 1  (Citation Analysis)
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