# RECORD 844f3013b415b6de89430c28be2c24c13f35196d # TITLE: Using GIS and Hedonic in the modelling of spatial variation of housing price in Xiamen city # YEAR: 2013.0 VENUE: nan DOI: 10.14246/irspsd.1.4_29 # AUTHORS: Yuan Li; Lang-Jie He; W. Xu; Hui Wang; Zi-Hao He # PAGES: 14 CANDIDATE TABLE PAGES (1-based): [9] # ABSTRACT: Valuing the built environment with the support of GIS and housing price model is an interesting topic because it connects the spatial thinking with economic concerns. In this paper, we chose the ordinary commercial housing in Xiamen City as our research targets, and the technology of GIS and Hedonic price model were used. Xiamen city is a typical coastal city, and from the research result, we found that the distribution of higher housing price was kept consistent with the coastal areas of Xiamen city. Besides, the average housing price of Xiamen inner-island (the old urban island area) was far higher than the outer-island. To reveal the degree of different spatial elements affecting housing price, we chose 21 variables (three types: location characteristic, structure characteristic and neighbourhood characteristic) and measured them in GIS platform. The Hedonic model showed that the main elements that influencing the price of commodity housings in Xiamen included Property Management Fee, Distance to Commercial Center, Distance to Hospital, Distance to Primary School, Near Village or Not, Near Green space or Not, Near kindergarten or Not. At the end of the paper, we provided three suggestions to balance the spatial variation of housing price in Xiamen City. ===== PAGE 1 (score 9, numeric-paren 0, table-words 0, var-words 9) ===== 29 International review for spatial planning and sustainable development, Vol.1 No.4 (2013), 29-42 ISSN: 2187-3666 (online) DOI: http://dx.doi.org/10.14246/irspsd.1.4_29 Copyright@SPSD Press from 2010, SPSD Press, Kanazawa Using GIS and Hedonic in the modelling of spatial variation of housing price in Xiamen city Yuan Li¹*, Lang He¹, Wangtu Xu¹, Hui Wang¹, Zizhang He2 1 School of Architecture and Civil Engineering, Xiamen University 2 Xiamen Urban Planning & Design Institute * Corresponding Author, Email: Yako79@gmail.com Received 16 December 2012; Accepted 5 July 2013 Key words: GIS, Housing Price, Spatial Variation, Hedonic, Xiamen City Abstract: Valuing the built environment with the support of GIS and housing price model is an interesting topic because it connects the spatial thinking with economic concerns. In this paper, we chose the ordinary commercial housing in Xiamen City as our research targets, and the technology of GIS and Hedonic price model were used. Xiamen city is a typical coastal city, and from the research result, we found that the distribution of higher housing price was kept consistent with the coastal areas of Xiamen city. Besides, the average housing price of Xiamen inner-island (the old urban island area) was far higher than the outer-island. To reveal the degree of different spatial elements affecting housing price, we chose 21 variables (three types: location characteristic, structure characteristic and neighbourhood characteristic) and measured them in GIS platform. The Hedonic model showed that the main elements that influencing the price of commodity housings in Xiamen included Property Management Fee, Distance to Commercial Center, Distance to Hospital, Distance to Primary School, Near Village or Not, Near Green space or Not, Near kindergarten or Not. At the end of the paper, we provided three suggestions to balance the spatial variation of housing price in Xiamen City. 1. BACKGROUND Housing, which is one of the most basic human needs, is a hot economic issue and social issues related to people's livelihood. Many factors influence the housing price and many researchers try to reveal the distribution rules on spatial variation in housing price. Some people (Xu, 1997; Jiang and Zhu, 2005; Meng, Zhang et al., 2005; Mei and Li, 2008) used GIS spatial interpolation method to get spatial distribution map and contour map of housing price. Some people (Luo, He et al., 2002) took Lanzhou as a case study and constructed the SD-GIS space-time simulation model to study the space-time distribution changes of residential price. Some (Montero and Larraz, 2009) considered that space in the real estate market is important and official averages do not take into account the spatial correlation of housing price. They proposed the Kriging mean method to estimate mean housing price. Some (Fik, Ling et al., 2003) hold the view that absolute location must be viewed as interacting with other determinants of housing value. They presented an interactive variables approach and tested its ability to explain price variation in an urban residential housing market. Some (Zhang, Meng et al., 2004; Armstrong and Rodríguez, 2006) established the Hedonic price method, studied the relationships between different traffic convenient degree @Licensee SPSD Press This open access article is published under a Creative Commons [Attribution- NonCommercial-NoDerivatives 4.0 International] license. https://creativecommons.org/licenses/by-nc-nd/4.0/ ===== PAGE 9 (score 27, numeric-paren 0, table-words 9, var-words 5) ===== Li, et al 37 10%. Combined with variance inflation factor (VIF) inspection, we weeded out the multicollinearity factors. Finally, there were 7 variables selected in the model. After running the regression analysis, the results were as shown in the Table 3. Table 2. Comparison of three functions Function type R R2 Adjusted R2 Linear model 0.901 0.812 0.800 Log-linear model 0.897 0.805 0.790 Semi-logarithmic model 0.874 0.764 0.754 Table 3. Regression coefficient analysis Variable Non-standardized coefficient Standardize d coefficient t Sig. VIF B Std Error Beta Constant 5274.659 1446.784 3.646 .000 PropertyManagementFee (X21) 4880.947 445.076 .613 10.967 .000 1.270 NextToCC (X2) -.602 .153 -.218 -3.939 .000 1.247 NextToHospital (X6) 1.190 .387 .197 3.071 .003 1.675 NextToKPSchool (X3) -.271 .127 -.123 -2.139 .035 1.354 VillageEffect (X14) -2501.633 968.019 -.139 -2.584 .011 1.173 GreenFieldEffect (X11) 2974.278 1024.754 .163 2.902 .005 1.289 KGService (X10) 2572.500 1004.815 .137 2.560 .012 1.159 5. RESULTS The regression coefficients for 7 characteristic variables of the linear model could be obtained by regression analysis. We calculated the housing Hedonic price model of Xiamen, as shown in Formula (7): Price=5274.659-0.602X2-0.271X3+1.19X6+2572.5X10+2974.278X11-2501.63 3 X14+4880.947 X21 (7) According to the results of regression analysis, we could find the main elements that influence the price of commodity housings in Xiamen: PropertyManagementFee (X21), NextToCC (X2), NextToHospital (X6), NextToKPSchool (X3), VillageEffect (X14), GreenFieldEffect (X11), KGService (X10). 1) Proximity of the commercial centers (X2) Generally speaking, commercial centers were the most active areas of a city as they provided various urban services and consumption choices for urban residents, which made it very convenient for people to live. Theoretically, the housing price in the surrounding area was relatively higher. It could be seen from the Hedonic price model that the variable coefficient of the distance to commercial centers was -0.602, suggesting that the distance from housing to business centers was inversely proportional to the housing price. With the distance between dwellings and business centers expanding, the residential price would fall. More specifically, every 1 ===== PAGE 10 (score 15, numeric-paren 0, table-words 2, var-words 11) ===== 38 IRSPSD International, Vol.1 No.4 (2013), 29-42 kilometre of the increase in distance would cause 602 RMB (Yuan) loss in sale price. 2) Proximity of the hospitals (X6) With the improvement of living standards, people paid more attention to medical and health care than before. As an important kind of public service, medical care provided protection for the life and health of the residents. “Time is life”, the distances between dwellings and hospitals measured the residents’ medical convenience. However, the coefficient of the model doesn’t reflect the relationship that the houses price increases among with the distance increasing. The most reason is the models don’t differentiate the needs of health care service between different age groups. The young people are strong and seldom go to the hospital. They usually will never take hospital into account even reject live close to hospital. Meanwhile the elderly people are more often go to the hospital. Considering the access of the data, the Hedonic model didn’t specially research the age structure of families then ignored the elderly’s preference close to hospital. In the Hedonic price model, the variable coefficient of hospitalization was 1.19, and it meant that the sale price would increase 1,190 RMB as the distance to hospitals increase 1 kilometer. 3) Proximity of the key primary schools (X3) Education was the foundation of the nation, which was related to the quality of people and long-term development of the country. As the high-quality education resources were limited and unevenly distributed, many parents in China rent or even bought houses near key schools in order to offer their children with better education. As can be seen from the above Hedonic price model, the key primary schools had a positive effect on housing price and the sale price would decrease 1,190 RMB per kilometer as the distance to provincial-demonstrated primary schools increased. 4) Near village or not (X14) With the increasing development of Chinese economy, the process of urbanization was becoming faster and faster. Urban construction and urban area expanded to the outlying regions, which made “villages surrounded by cities” become the most common phenomenon. The area that had not been urbanized could be found in the urban area, and this was called “village in the city”. Cities were often close to rural settlements in the outreach process. The rural lands possessed features such as a high building density, a low greening rate, narrow and hindered streets, poor sanitation and so on because of land property restrictions and lack of reasonable and effective planning. Urban infrastructure and public service facility could not reach the whole city, so the development of urbanized area close to villages was kind of limited. As can be seen from the above Hedonic price model, villages had a negative effect on residential lands’ externality. The average price of the premises near the village was 2,501.633 RMB lower than the ones far away from the village. 5) Near Greenland or not (X11) As the living standard improves and awareness of environmental protection enhances, residents were more willing to purchase houses with comfortable environment. Being the open space of a city, public green lands possessed functions like landscape, airing and leisure. They were provided with social, economic and ecological value, and made the comfortable living and working environment accessible to residents. It could be concluded from the Hedonic price model that public green lands had a positive effect on urban residential lands’ externality. The average price of the housings close