The Quantification Study On Adjustment Factor In Urban Housing Market Comparision

The urban housing price is a sensitive socio-economic question. The urban housing is the important wealth for the government or the urban residents, so that appraising the urban housing price accurately has the significance, regarding of taking the housing price as the tax foundation, safeguarding the legitimate rights and interests of the borrower in the mortgage loan, performing real estate appraisal industry social duties to control the risk for finance credit institutions, etc. With Chinese market-oriented process development, transaction activities related to the urban house grows in number day by day, therefore, how to develop the real estate price theory and the appraisal theory, establishing scientific, effective urban real estate appraisal method, specially aiming at the urban housing market comparison is the industry issues that the real estate appraisal industry faces. MOHURD, China institute of real estate appraisers and gents, Tianjin real estate management, Tianjin real estate appraisers and so send out appeals and encourage to resolve the difficult problem on many occasions. Thesis topic is determined and the research is carried out under this situation.At present, there main three problems that puzzle market comparison approach in the urban housing price appraisal, they are the selection of comparable examples, the determination of the attribute prices, the determination of the comprehensive price. Three problems are interrelated and together affect the accuracy of the valuation results, the key and difficult point focusing on the second question. The paper take the above three difficult problems as the research content, take constructing adjustment factor quantification model suiting to the China urban housing market to solve the above problem as the research central goal. The paper strives to provide new ideas of housing price with high reliability and high operability and seeks to provide a new comparative method model with the high accuracy, low cost and high efficiency for real estate industry. The paper research is clear and targeted.The paper takes the research methods that normative analysis and empirical research combine each other, qualitative analysis and quantitative analysis combine each other. The normative analysis provides the theoretical basis for the question proposed, the question solution (mainly model construction), the analysis of the answer (research conclusion). The empirical research method carries on the estimation and the examination through the full and accurate data for the model. It is helpful to grasp the movement rule from the phenomenon and form the economical new theory. The qualitative analysis is the method that essential attribute of urban housing price is discussed by. The quantitative analysis enables the people more precise understanding about urban housing price essence from attribute quality target. The paper, firstly, by the qualitative analysis, describes the relationship between attribute quality and prices, in order to provide the directive instruction for quantitative analysis of urban housing attribute quality price. Then, by the quantitative analysis, research results of the urban housing attribute prices is determined. Finally, by the qualitative analysis, research results of quantitative analysis is discussed and tested on the strict base of quantitative investigation.Paper main research content and research results are as follows.(1) Having constructed the urban housing attribute price model and having conducted the empirical study.(2) Having constructed the urban housing market comparison model and having conducted the empirical study.(3) Through the empirical study to the Tianjin central district housing market, receiving the attribute prices.(4) Through the research to sub-market from the Tianjin central district housing market, draw the cllusion that the sub-market based on administrative divisions exists.Finally, the paper raises outlook and the questions to which further studies should pay attention, and points the preparatory work that real estate management and the industry institute should do to promote the research result and better serve the appraisal business.