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模糊語意變數法應用於住宅消費決策行為之初探研究

An Application of Fuzzy Linguistic Variable Method (FLVM) on Housing Consumption

摘要


家户在選擇住宅購屋時,包含甚為複雜的決策過程,其中的不確定性甚高。如何衡量這些複雜的因素,使其成為適切的購屋評估決策指標,以供建築投資業者規劃設計合適的住宅產品,為本文所欲探討之主要課題。相關文獻中對於住宅消費決策行為的研究大都需要人口統計資料及生活型態等解釋變數。在問卷調查過程中消費者對自身需求可能並非明確具體,而具有模糊情形。此外,資料中所顯示的資訊是否能眞正表現出消費者本身的模糊特性,亦値得商榷。本研究的目的在於應用模糊語意變數法(Fuzzy Linguistic Variable Method, FLVM),經由解模糊化(defuzzify)的過程,將以三角模糊數表示的模糊權重,轉換為明確數值(crisp number),再進行各初選指標的重要度排序,以描繪出家户對不同住宅屬性的重視程度。在方法上,本研究嘗試將模糊語意變數法應用於不動產決策研究領域,期望結合模糊理論,將具模糊性與不確定性的家户購屋主觀行為加以客觀歸納成不同購屋決策者主觀判定下的評價,以得到具有共識性且較客觀的結果,並據以建立住宅消費決策評估指標。本研究擷取民國86年居住在花蓮地區之家户問卷調查資料,建立了家户購屋決策的重视程度指標。結果發現花蓮地區居民購屋時比較重视的因素包括「附近有無公害污染」、「地段增值潛力」、「學區」、「房價」、「交通方便」等。

並列摘要


In this study, we attemptted to apply fuzzy theory to establish the evaluating indicators of house buying. Literature on housing choice concludes that the decision making behavior is havily relied on thesocial-economic variables, such as family type and prefernce. However, the answer obatined from questionnaire survey are ambiguous. The purpose of this study is to transfer the weighted fuzzy mean indicated by triangular fuzzy number into the crisp number by applying Fuzzy Linguistic Variable Method (FLVM) and using defuzzify procedure. We analyze the significant degree of different housing attributesfrom household by ranking all of the first choice indications. Empirical data are selected from household questionnaire survey of Hualien area in 1997.We estimated the significant indications of household's decision on housing choice. Our finding indicated that the household in Hualien area more emphasized the factors on housing choice including public nuisance and pollution, increasing value potential, school location, housing price and traffic convenience, etc. Households in different areas have different significance on housing choice.

參考文獻


陳彥仲 Chen, Yen-Jong(1997)。住宅選擇之程序性決策模式 The Sequential Decision Models for Housing Choice。住宅學報 Journal of Housing Studies。5
Asker, D.(1981).Multivariate Analysis in Marketing.
Bagnoli, C., Smith, H. C.(1998).The Theory of Fuzzy Logic and its Application to Real Estate Valuation.Journal of Real Estate Research.16(2)
Bellman, R. E., Zadeh, L. A.(1970).Decision-Making in a Fuzzy Environment.Management Science.17(4)
Dubois, D., Prade, H.(1983).Ranking fuzzy numbers in the setting of possibility theory.Information Science.30

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