# RECORD 25220943ab063e0fe03168460d2005c02cf25de0 # TITLE: Mass Appraisal of Property Tax Base based on Multivariate Linear Regression—Empirical Study on Four Districts of Jinan # YEAR: 2013.0 VENUE: nan DOI: 10.2991/icetis-13.2013.254 # AUTHORS: Shan Tian # PAGES: 5 CANDIDATE TABLE PAGES (1-based): [5] # ABSTRACT: In this paper, a multivariate linear regression analysis is made to the effective transaction data of 226 housing stocks in four administrative regions (Tianqiao District, Shizhong District, Lixia District, and Huaiyin District) of Jinan, a mass appraisal model of real estate values is established, and also the transaction prices of 226 housing stocks are compared with the appraised prices. In this study, it is thought that an efficient, low-cost, objective, and accurate mass appraisal can be made to property tax base through the establishment of a unified real estate information database. In the mass appraisal system, geography information technology should be integrated so as to improve the objectivity and accuracy of the appraisal results. ===== PAGE 1 (score 4, numeric-paren 0, table-words 0, var-words 4) ===== Mass Appraisal of Property Tax Base based on Multivariate Linear Regression—Empirical Study on Four Districts of Jinan Shan TIAN School of Economic Management, Shandong Women's University, Jinan, Shandong, China Tianshanhaoxinqing@163.com Keywords: Property tax base; mass appraisal; multivariate linear regression Abstract. In this paper, a multivariate linear regression analysis is made to the effective transaction data of 226 housing stocks in four administrative regions (Tianqiao District, Shizhong District, Lixia District, and Huaiyin District) of Jinan, a mass appraisal model of real estate values is established, and also the transaction prices of 226 housing stocks are compared with the appraised prices. In this study, it is thought that an efficient, low-cost, objective, and accurate mass appraisal can be made to property tax base through the establishment of a unified real estate information database. In the mass appraisal system, geography information technology should be integrated so as to improve the objectivity and accuracy of the appraisal results. Introduction Since the uniformly standardized collection of the property tax was proposed in the Third Plenum of the 16th CPC Central Committee on October 14, 2003 and relevant charges were canceled, a lot of fundamental work has been made by China’s government to the collection of property tax. However, there are many problems necessary to solve, and property tax base and tax rate should be primarily considered because they directly play a decisive role in the amount of payable tax and also has a tie with the fairness of the taxation. Tax base is the basic amount of the payable tax for calculation, so it is the basis of tax assessment. The main basis for determining the base of the property tax collected in the transferring process of real estate lies in the appraisal value of property. Therefore, accurately estimating the appraisal value of real estate tax is the foundation of determining property tax base and deciding payable property tax amount, and also the key to the success of collecting property tax. The appraisal scope of real estate value for the purpose of taxation generally includes all real estates in the country, so the amount in appraisal is huge. Appraisal time-point generally refers to the unified appraisal base date provided in the tax law, and the time points are required to be consistent. To ensure the fairness of the taxation, appraised objects should be periodically assessed. Therefore, time and cost should be considered seriously in the appraisal, and mass appraisal techniques are necessarily introduced to the appraisal of property tax base. Mass appraisal is a new computer technology based appraisal method system, in which a corresponding asset appraisal model is established with three principles of asset appraisal and also the appraisal model is repeatedly corrected and evaluated with mathematical statistics technology and other related technologies. Mass appraisal rose in foreign countries in the 1970s, but has developed into a new appraisal mode of great influencing power currently. At present, property tax base is commonly assessed with mass appraisal in the countries such as the United States, Britain, Germany, and Finland using market value as tax assessment basis. As early as 1919, scholars in the western world had applied the multivariate regression analysis in statistics to price appraisal. Due to the absence of computer technology at that time, early technical analyses on mass appraisal were manually completed by economists using multivariate regression analysis, so a lot of time and energy were required to cost. Later, with the popularization of information technology and computer technology, computer-assisted mass appraisal (CAMA) has been widely applied to property tax base appraisal, public administration value appraisal, and the mass real estate value appraisal in business activities. Now, this technique has been used in the International Conference on Education Technology and Information System (ICETIS 2013) © 2013. The authors - Published by Atlantis Press 1111 ===== PAGE 5 (score 25, numeric-paren 0, table-words 3, var-words 8) ===== Table 2: Coefficients Model Non-standardized Coefficients Standardized Coefficients t Sig. Co-linearity Statistics B Std. Error Tolerance VIF (Constant) -59506.228 50917.800 -1.169 0.244 Geographic Position 58080.342 8630.594 0.239 6.730 0.000 0.979 1.021 The Number of Verandas -35112.641 14006.309 -0.092 -2.507 0.013 0.914 1.094 Building area 6972.190 363.181 0.713 19.198 0.000 0.893 1.120 Housing type 29134.010 11631.539 0.099 2.505 0.013 0.782 1.279 Decoration 25098.127 8085.780 0.110 3.104 0.002 0.973 1.028 Facilities 105639.321 26027.895 0.158 4.059 0.000 0.816 1.226 Table 3: The ratio between market value and appraisal value No. Market value Si (RMB) Appraisal value Ai (RMB) ARi=Ai/Si |ARi-M| No. Market value Si (RMB) Appraisal value Ai (RMB) ARi=Ai/Si |ARi-M| 1 800,021 739,821.96 0.92 0.5011 12 850,000 883,447.32 1.04 0.0043 2 850,000 794,543.01 0.93 0.1002 13 850,000 889,152.54 1.05 0.0111 3 876,000 841,314.04 0.96 0.0746 14 830,000 874,848.08 1.05 0.0190 4 860,000 831,851.35 0.97 0.0677 15 850,000 901,573.25 1.06 0.0257 5 850,000 826,027.18 0.97 0.0632 16 850,000 907,278.47 1.07 0.0324 6 849,966 830,460.43 0.98 0.0579 17 960,000 1,028,254.20 1.07 0.0361 7 850,000 833,375.02 0.98 0.0546 18 870,000 934,555.47 1.07 0.0392 8 860,000 852,767.92 0.99 0.0434 19 820,000 904,048.47 1.10 0.0675 9 850,000 863,206.52 1.02 0.0195 20 850,000 939,015.44 1.10 0.0697 10 830,000 858,033.77 1.03 0.0012 21 900,000 999,559.56 1.11 0.0756 11 850,000 882,180.35 1.04 0.0029 22 850,000 983,060.66 1.16 0.1215 Median 850000 878514.21 Median ratio 1.03 Mean 854,818 881,744.32 Mean ratio 1.03 Discrete coefficient 6.54 Price-related difference 1.00 Building Area LA Numerical Variable The building area of each property ( Unit: m2) The Number of Toilets W Numerical Variable The number of the toilets in the property of each transaction case (Unit: room) Housing Type RS Classified Variable multi-storey housing (≦7)=0; Small high-rise housing (8~12, including 12)=1; High-rise housing (>13)=2 Years of Housing AGE Numerical Variable Base period is the year of 2012, and the year of the housing in 2012 is 0 (Unit: year) Decoration DS Classified Variable Blank or clear-water=1; simple decoration=2; medium decoration=3; refined decoration=4; luxury decoration=5 Facilities I Dummy Variable Non double-gas source facilities=0; double-gas source facilities=1 The Number of Floors L Numerical Variable The number of floors in the property of each transaction case (Unit: floor) 1115