1998年中國大陸改革開放不動產市場後，由於政府大力地推動城鎮化與不動產市場改革以及中國大陸人均GDP的成長快速等原因，使房價快速上漲。2008年金融危機後至2012年時，中國大陸房價上漲約63.31%，但居民收入僅增加55.66%，顯示房價上漲速度超越所得上漲速度，因此，本研究擬由資產現值模型建立房價基要價值，並由狀態空間模型推估泡沫價格，探討北京市、天津市、上海市與重慶市不動產市場是否存在泡沫化的現象。經由1998年至2012年的家戶所得推估泡沫價格後，再以向量誤差修正模型與Granger因果關係檢定檢驗泡沫價格與貨幣供給額、預期物價指數、購屋貸款利率、住房開發投資額與前期房價成長率間的關係。 實證結果指出，北京泡沫化幅度變動劇烈，2012年第2季泡沫化約57%，由於中國大陸政府對北京執行政策較為嚴格，因而使北京市的房價受到政府政策的影響而產生較劇烈地波動。天津的泡沫價格則是由2004年開始轉為正值，並於2006年第2季達到第一波高峰。上海房價呈現穩定上升，其泡沫化程度約維持在45%上下，其泡沫化高點出現在2010年，泡沫價格占房屋價格約46%。重慶房價於2004年開始大幅上升，並於2011年出現泡沫高峰，比重約為40%。另外，預期通貨膨脹率與住房開發投資額為Granger領先於北京、天津與重慶的泡沫價格，表示政府能藉由控制北京、天津與重慶的預期通貨膨脹與不動產開發投資市場，來降低不動產的泡沫價格。而上海的購屋貸款利率、前期房價成長率與泡沫價格為雙向因果關係，貨幣供給則為Granger領先於上海泡沫價格，表示政府若能藉由控制上海的貨幣供給與購屋貸款利率，降低其泡沫價格。

臺灣在以往的半個世紀，歷經工商業快速地成長，當時都市計畫與建築未能跟上其腳步，爰於都市計畫法以「舊市區更新」因應改善。然政府機關採「徵收」或「區段徵收」方式實施，受限於財力、人力之不足，及未透過協商機制取得私有土地，引起民眾反抗心理，以致成效不彰。部分地方政府為解決此一困境，開始制訂獎勵民間辦理都市更新，藉以引入民間資源，推動都市更新。 1998年「都市更新條例」公布施行，強制規範公有土地及建築物，依核定版都市更新事業計畫處理，而民間實施更新事業計畫重建方式，主要為協議合建及權利變換，然公有土地尚無法與實施者以協議合建方式進行更新事業，因此，公有土地參與都市更新方式，係以權利變換方式為主軸。 本研究於國有不動產參與都市更新權利變換權益分配個案中發現： 1.適時挹注國有土地參與都市更新事業，得以達到更新事業門檻，進而促成更新事業產權整合。 2.都市更新審議委員會負責審議都市更新事業計畫及權利變換計畫，包括核定共同負擔，為把關國有土地權益最重要防線。 3.權利變換範圍內國有土地面積與共同負擔費用呈現正向比例，國有土地面積愈大，樓地板愈大，則營建成本相對愈高，而權利變換之共同負擔費用，原則提列上限，得否調整，需由審議會議決通過。 建議： 1.審議會所列機關代表，應包括公產管理機關，以求公正客觀維護公產權益。 2.更新事業計畫擬定階段，規劃可供公務、公共使用性質房地，以利於相關機關視業務需要依法辦理撥用，並預估公產管理期間需負擔管(處)理成本，列為共同負擔費用，由參與者共同負擔。 3.公有土地參與都市更新，係為實現公共利益配合政策而執行，無論其參與更新事業目的，應考量維護全民財產權益。 / Taiwan, in the past half of century, has experienced the period of industry and commerce rapid expanding, but the urban plan and architecture couldn’t keep pace with them at that time. Therefore, “old town urban area renewal” came out and improved. However, limited to insufficiency of financial, human resources, and acquirement of private land without negotiation, the government agencies conducted “expropriation” or “zone expropriation” and the result was ineffective. In order to solve this dilemma, some local governments established the system of incentive of the private participation of urban renewal, introduced private power effectively, and promoted urban renewal fast. Urban Renewal Act was promulgated and conducted on 1998. It forces all the public lands and constructions should deal with the approved urban renewal business plan area. The ways of reconstruction dealing with the urban renewal business plan of non-governmental organizations are joint construction and rights transformation. However, the public lands can’t be proceeded urban renewal business plan by using the wayof reconstruction with implementers. Therefore, the main way of public lands participation in urban renewal is rights transformation. We realize on the case of national real estateparticipation in urban renewal rights transformationbenefit distribution on this study: 1.By pouring national real estate into the participation of urban renewal business plan, we are able to surpass threshold of urban renewal business plan, and promote the integration of property rights of renewal business plan. 2.The committee of urban renewal is in charge of reviewing renewal business plan and rights transformation, including approved common expense sharing. 3.There is a positive correlation between national land area within the area rights transformation and common expense sharing. If the common expense sharing which takes into upper limit is able to adjust, it should be passed a resolution by the committee. In summary, the study proposes suggestions as below: 1.The committee which lists governmental agencies should consist of public owned property managing authority, so that it is able to protect the rights of public property. 2.In the stage of renewal business plan, it should planfor office and public use real estate in order to help relative governmental agencies appropriate it, evaluates the management cost within the period of public management, and takes common expense sharing which should be shared by participators into account. 3.The aim of public land participation in urban renewal is to bring about public rights coordinating public policy. No matter what thepurposes of participation in urban renewal are, it should protect the all citizens’ rights.

台灣不動產投資信託(T-REIT)自2005年發行至今已逾四年，過去國內相關的文獻多集中於法律面、制度架構及問卷調查等相關研究，對於整體市場實際表現的討論則較缺乏。隨著交易歷史資料的延展，本研究針對國內REITs施行的現況與總體經濟波動及不動產市場之關係進行討論。在總體經濟部分以股價指數、利率與通貨膨脹進行分析，在不動產市場部分則採用辦公室平均租金水準與實際商辦交易價格為指標，期望探索T-REITs價格與總體經濟及不動產市場間之長期關係。 本文發現T-REITs與股價指數、商辦租金以及商辦交易價格間，均會存在長期均衡關係，即有共整合情形，而T-REITs與通貨膨脹率以及T-REITs與利率間不具有長期均衡關係，且股價指數、商辦租金以及通貨膨脹率與T-REITs為正向關係，利率及商辦租金與T-REITs則為反向關係。此外，根據因果關係檢定，股價指數與通貨膨脹率皆領先T-REITs，而商辦租金與T-REITs為雙向回饋。本文結果顯示，台灣REITs與總體經濟及商用不動產市場具有長期均衡關係，亦即總體經濟的變動以及不動產市場的波動可做為探討T-REITs長期變化的指標。 / Taiwan launched the first Real Estate Investment Trusts (T-REITs) in 2005. However, over the past few years, studies regarding T-REITs mainly focused on legal system, institutional framework and questionnaire surveys, but lack of empirical analysis on the performance of T-REIT markets. This study therefore intends to explore the cointegration and causality relationship among the T-REITs, macroeconomy and commercial real estate markets. The macroeconomic factors in this study include the stock prices, interest rate and inflation rate; and the real estate variables include the commercial rents and commercial prices. Empirical results first demonstrate that there exists the long-run relationship among T-REITs, stock prices, commercial rents and commercial prices, but not the interest rate or inflation rate. Moreover, T-REITs are significantly related to stock prices, interest rate and inflation rates as well as commercial rents and commercial prices. Third, the changes of stock prices and inflation rate lead the change of T-REITs. Finally, there is a significant feedback relationship between T-REITs and commercial rents.

不動產的高度異質常使得市場參與者蒙受相當大的不確定性，若不動產市場參與者能對於不動產價值有效預測與掌握，將可以減少所面臨的風險。因此，不動產估價人員提供的專業服務-估價訊息，逐漸形成市場運作的一環。而估價(valuation)除了是一種技術過程之外，也是一種「行為」過程，終究離不開人的執行問題。 本論文嘗試以認知心裡學中肯證偏誤角度，探討不動產估價人員於決定估值時可能發生的偏誤，藉此瞭解估價人員是否會於必要的估價程序前，一個不容易改變的自信估值已經決定；而這樣提早產生估值的行為，是否足以影響估價結果。 本論文採取問卷調查方式進行課題之實證，問卷預試方法則以認知訪談予以修正。結果得到台灣估價人員並非依照理論模式決定估值，隱含採取捷思法的價格決定方式；而且越早決定估值的估價人員對於認知合理區間越大。另外，發現年資兩年以上與所處公司或估價部門規模越大的估價人員，其估值決定較早，這可能來自於可靠交易資訊不足之下估價必須大量倚賴經驗以及大規模公司可接觸的訊息多樣之緣故。 關鍵字：不動產估價、估價程序、行為研究、肯證偏誤

基於不動產具有昂貴、耐久、不可移動等其他資產所沒有優點與特性，在眾多投資標的中，不動產投資仍為重要選項之一。 近年來隨著法令的開發、經營模式日益複雜，不動產產業之產品更趨向多元化，不動產產業投資業者的業務方向由以往著重的「開發出售」逐步轉為「經營管理」，使得不動產產業投資分析所扮演的角色越形重要，很可惜的，我們檢視國內外不動產發展歷程，雖然產品本質不斷轉變，不動產給予人們投機之印象似乎仍深印腦海 本研究希望藉由分析不動產產業投資環境之各參與部門與主要產品，以瞭解不動產產業投資關聯性，並據以挑選出具代表性樣本，在深入解構樣本代表的投資決策模式分析並整理出實務上所出現的主要課題，提出具體解決建議。 本文基於上述研究，提出修正的不動產產業投資決策模式，以因應不同投資可能面臨的風險，據以擬定最適決策。 修正之決策模式認為應特別著重於 1、策略面之思考： 強調企業不動產策略與企業整體策略/願景連結，依企業策略進行自有資源最有效利用之規劃，與資深管理階層溝通企業價值、界定核心競爭力，協調整合內部需求，並尋求適當之外部資源，串連整合企業不動產理論技能與實務經驗之落差，以建構最適宜內、外部資源整合體系，使企業不動產之執行能有效落實於組織之運行。 2、投資決策準則之建立： 評估針對每一投資案，建立投資決策準則，綜合評估(1)企業發展目標(2)企業不動產策略(3)投資決策指標(4)法規限制條件(5)區域發展趨勢(6)市場可行性(7)投資效益(8)資金規劃(9)開發時程(10)經營管理等項目。 3、投資後管理之作業 「投資決策分析準則」應能在經營後，以相同之基準做為「績效評估指標」。企業亦應建立持續性、系統化的資料管理系統，以提供持續、即時之企業不動產資訊及分析成果；特別是追蹤企業不動產執行時所需之成本以及是否滿足企業不動產目標/期望並且定期提出報告給管理階層，同時對於其它投資案(含不動產及其它投資案)進行標竿比較。

早期國外學者指出不動產投資信託基金具有「低風險」與「防禦性」的特質，簡稱為「抗跌性」與「反槓桿效果」，亦即除了與大盤相關性較低之外，市場的負向衝擊對於其報酬的影響比正向衝擊來的小。為了瞭解台灣不動產投資信託基金的價格是否存在過度恐慌，本文分成兩部分著眼：過去的研究大都著手在不動產投資信託基金的價格上，而忽略其為封閉型基金的特性，故本文先從「封閉型基金」角度，以因素分析擷取其共同因子，再利用BGARCH模型，探討共同因子與台灣VIX指數變化間是否存在不對稱效果。第二則是將不動產投資信託基金折溢價進行拆解，分為價格與資產淨值，運用相同方式重新觀察反槓桿效果，探討台灣不動產投資信託基金的價格是否存在過度恐慌。 本研究得到一些與過去文獻不同的結論： 1.若市場出現正向或是負向衝擊，台灣不動產投資信託基金折溢價的波動會上升， 且過去的衝擊持續性強，反應財務資料呈現的波動叢集性。 2.不動產投資信託基金價格具有「槓桿效果」，市場的負向衝擊會額外增加報酬的波動，並無防禦性特質。 3.REITs價格與台灣VIX指數變動具有顯著相關，而資產淨值則無此現象，證明台灣不動產投資信託基金價格相對於資產淨值存在過度恐慌的現象。

為改善綠建築與售價之間的定錨效應，本研究以台灣EEWH綠建築評估系統為基礎，建構AHP分析層級程序法之問卷架構，共分為目標、面向、指標以及評估項目四大階層。透過第一階段以及第二階段問卷調查與分析，本研究初步得到不動產估價師平均願提高9.77%之綠建築願付價格，且住宅類綠建築中，價格影響權重較高者為室內環境、節能設備以及空調系統指標。 取得各評估項目的價格影響權重後，以相關分析、價格影響權重分析為基礎，篩選應謹慎考量其價格的評估項目，再輔以盒狀圖分析，將價格影響權重細分為若干加權等級，進而建立更加完善的住宅類綠建築估價應用總表，並提供不動產估價師於實務中使用。 最終，運用實證分析，本研究發現綠建築等級或總得分與溢價幅度具有中度以上的解釋力，當綠建築等級或總得分越高時，其溢價幅度亦隨之提高，然而，當綠建築施作至一定程度後，其上升的溢價幅度將有限；此外，以銀級為例時，同等級內的綠建築總得分與溢價幅度未具顯著解釋力，意旨同等級案例之總得分越高時，並無法解釋其溢價幅度將越大。本研究建議，當衡量綠建築之價格時，應依循本研究提供的應用總表，評估各綠建築的實質溢價情況，以提高綠建築案例於估價時的準確性。 / In order to improve the anchoring effect between green building and selling price, this study based on the EEWH Green Building Assessment System in Taiwan, and constructed the questionnaire structure of AHP analysis hierarchy process which classified into four dimensions: Target, Orientation, Index and Element. Through the first stage and the second stage of the questionnaire survey, the higher weight of the price impact are the indexes of indoor environment, energy-saving equipment and air conditioning system. The average of willing to pay on the green buildings from the appraisals is around 9.77%. Based on the correlation analysis, the weight of price impact analysis and the box analysis, there are some elements which need to be subdivided into several weighting scale. After that, this study would establish a much more complete table called “the application table of residential green buildings.” It will provide for appraisers to use in practice as well. Finally, using the empirical analysis, this study found that there are moderate positive correlation between the levels or the total scores of green buildings and the price premium, which means the higher the green building level or the total score is, the greater the price premium is. However, when the green building level reach a certain extent, the increase on the prie premium will be limited. In addition, take the silver level for example. The total score of green buildings in the same level dose not have significant correlation with its price premium, which means the higher scores of green buildings in the same level can not explain the price premium will be greater. Therefore, this study suggests that green buildings should follow the application table provided in this study to measure the real premiums of the green buildings in order to improve the accuracy of the green building price at the time of appraisal.

不動產證券化可行性之研究 摘要 為解決傳統不動產投資困境，將不動產投資方式由固定的資產形式轉變為證券型態的概念，而有不動產證券化（Real Estate Securitization）的產生。國內主要的不動產證券化模式分為不動產投資信託（Real Estate Investment Trust）與不動產資產信託（Real Estate Asset Trust），這兩種模式未來市場供需面實際運作的可行性為何，將是不動產證券化制度成功與否的重要關鍵。 本研究先從需求面投資者的角度切入，透過問卷調查資料，運用Logit模型探討證券化可行性因素對於投資者購買不動產受益證券的影響。實證結果發現，一般投資者認為受益證券的市場流通性、分散風險的重要性愈高，以及預期報酬率愈高，其購買不動產受益證券的可能性愈高；在總體因素方面，對於未來證券市場情況愈樂觀，以及房地產市場情況愈樂觀，其購買受益證券的機率將愈高；法人投資者則認為分散風險的重要性愈高，以及該法人機構主要投資工具的種類愈多，其購買不動產受益證券的機率愈大。 以供給面不動產持有者財務上的可行性而言，其財務目標在追求自身的ROE極大化，因此不動產持有者將視各項風險來源對於投資報酬的影響，決定是否運用證券化投資方式。模擬分析結果發現，除了不動產持有者本身的財務結構限制與不動產經營能力之外，在個別考量委託成本風險與開發風險的情況下，其對於不動產持有者ROE的影響較小，但營運風險相較於其他風險來源，對於不動產持有者ROE的影響較大；綜合各項風險來源同時納入考量時，發現不動產持有者自有資金比例愈低，其運用證券化方式的ROE較高，但變動的幅度也較大。此一實證與模擬分析結果，對於未來國內不動產證券化實際運作，可提供政府、業者及一般投資大眾作為決策參考。 關鍵字：不動產證券化、不動產投資信託、不動產資產信託、Logit模型、蒙地卡羅模擬 / A Feasibility Study of Real Estate Securitization in Taiwai Abstract By transforming real assets into securities , real estate securitization is created to solve the liquidity problem of real estate investment. The real estate securitization system in Taiwan is divided into two types - Real Estate Investment Trust and Real Estate Asset Trust. Whether the real estate securitization system succeeds or not is based on the feasibility of the market operation in practice. On the demand side, this research uses Logit model to analyze the impact of the feasibility of the real estate securitization system on the investors’ behavior of buying beneficiary certificates by sampling from intuitional investors and individual investors. The empirical results show that the individual investors emphasize on liquidity, divergence, and expected return. In addition, the probability of buying real estate beneficiary certificates increases with the degree of their optimistic expectation on both the stock and the real estate markets. However, the institutional investors regard the divergence of portfolios and investment instruments as the main factors of their buying those certificates. On the supply side, given the financial objective of ROE maximum, the owners of the real estate will review all of impacts of risk on return of investment before their decision to take the way of securitization. In addition to the financial structure and the management ability of the owners, the results of Monte Carlo simulation on the effect of real estate securitization also reveal that: a. There is little influence on the ROE of the owners’ real assets while taking trust cost risk and land development cost risk into consideration. b. The influence of operation risk on ROE is more than that of other risks. c. Lower the proportion of capital, higher the ROE and bigger the variation of the ROE are. The results of empirical analysis can be a reference of decision making for Government, trust industry, and investors in the real estate security market operation. Keywords：Real Estate Securitization , Real Estate Investment Trust , Real Estate Asset Trust , Logit Model , Monte Carlo Simulation

不動產證券化條例於2003年7月23日公佈實施以來，不動產投資信託受益證券(REITs)和不動產資產信託受益證券(REATs)均已發行多檔，信託財產種類含括辦公室、百貨公司、旅館、商務住宅等；不動產產權型態包含所有權與設定地上權二類。然而「設定地上權的不動產」其資產價值會隨著時間而遞減的特性，對於以封閉型態上市的REITs基金而言，將產生淨資產價值(NAV)不斷下跌的問題，為避免前項問題影響基金的市價(Market Price)表現，本研究將透過「中崙大樓」出售予「富邦二號不動產投資信託基金」的實施經驗、相關財務理論的佐證及專家學者的深度訪談，來研究提撥「投資本金攤提準備金」(Reserve Fund)機制的優缺點及替代方案。 本研究結果發現，在不動產市場穩定發展的情況下，Reserve Fund除了可對投資人產生節稅效果之外；對基金而言：可避免基金之淨資產價值(NAV)隨時間不斷遞減的問題、可供地上權到期時還本之用、得以分散投資風險並發揮良好的財務槓桿的效果。然而相對的，除非基金的年營收維持每年固定上漲，否則投資人的名目收益率可能會逐年下降，並產生資金運用的無效率狀況。 至於是否ㄧ定要提撥Reserve Fund，從本研究中發現，若從投資人偏好來看，所有淨收益每年均全部發放或設計為PO、IO二個群組，或發行有期限的Finite Life REITs都是可以替代的方案。從開發商的角度，則可以將應收租金債權設計為金融資產證券而不做REITs。 此外，本研究亦發現目前台灣REITs的投資人幾乎將REITs視為固定收益證券，致使其市價波動及成交量均極小，建議政府應放寬法令限制，致力於活絡交易市場，才能達到初衷。而受託機構應扮演更積極的角度並將其與管理機構間的責任與分工進一步釐清，以避免發生管理機構的代理問題，以期更健全市場的發展。 不動產證券化就是將金融商品的彈性注入不動產的開發，本研究為設定地上權的不動產找出參與REIT的配套機制，期許能對政府及產業有所貢獻。 / The Real Estate Investment Trust (REITs) and Real Estate Asset Trust (REATs) securities had been issued since the “Real Estate backed securities Act” published on July 23rd, 2003. The properties being entrusted, for instance, office buildings, department stores, hotels, business suite, etc.. The right of property can be divided into two parts: the ownership and the superficies on land；However, the value of the properties with superficies right will be decreased when time passes by. The close-end fund will continually decline of Fund’s net asset value (NAV), and indirectly affect its market price. To solve such problems, the purpose of this research paper is to discuss the solution of the Reserve Fund design when the Chung-Lung building, offered by “ Fubon REITs no.2” , has its financial theories implication, also tried to interviews of scholars and professionals for the suggestions. From the result of this research paper, when the real estate market is at its steady growing stage, the Reserve Fund design can not only accurately solve to the problem of decreasing Fund’s NAV with time, but also it can bring such benefits as tax-saving and principle-paying at the expiration date. Moreover, the growing amount of Reserve Fund can positively benefit the fund itself by diversification and higher leverage capability. On the contrary, unless the revenue of the fund keeps constant growing, the investors’ nominal yield of return might decrease year by year, which will result in inefficiency in the usage of investment capital. For the Reserve Funds design, from the view of investors’ preference points, we find that the revenue allotment or issued Finite Life REITs could be substituted. On the other hand, from the view of developers’ points, they may regard it as a CMBS rather than REITs. If the government can abstemiously open financing limits of REITs, we can refer as company、SPC or SPT types of USA or Japan to substitute for the Reserve Funds design. The stock market of the real estate is the financial commodities will be more flexible to input the development of the real estate. The study of research paper is to form a complete set of REITs mechanism for the superficies on land of property which can be contributed for the government and industry of the real estate.

台灣不動產仲介業，從1977年成立公司組織發展至今32年、不動產仲介業務網路化從1996年至今13年、公部門為不動產交易安全建置e-house從2007年開始運作至今2年，對照2002年至今台灣不動產仲介交易糾紛逐年攀升現象；顯見，付出高額仲介費用買屋及賣屋的不動產消費者，並未因不動產仲介業者的組織規模龐大、營業收入豐碩、網路發達，資訊科技精進及政府成立e-house網站，而得到較完備的不動產交易安全保障。 本研究以滿足消費者需求為基礎，並以提供網絡仲介不動產交易安全環境的“推動方式和實實務層面”為主題，從不動產仲介之起源、不動產仲介市場現況、不動產仲介問題、e-house現況及e-house問題等過程為論述軸線.探討不動產仲介作業流程、不動產仲介交易糾紛原因、不動產網路仲介交易運作、聯賣制度運作不成功、自售網之崛起及e-house網站的政策目標等課題，經由(1)以交易成本及代理理論為基礎的論證；(2)對現行管理仲介業者的不動產經紀業管理條例之法制面與規範的認知；(3)對不動產消費者、不動產服務業者、政府三方不動產網路仲介交易相關主體特性的瞭解; (4)對於民間不動產網站及官方e-house網站仲介交易實務與現行法制規範相互影響，造成推動不動產交易安全障礙的課題進行探討; (5)分析影響不動產消費者使用民間不動產網站及官方e-house網站存在仲介代理問題及高昂仲介費用的交易成本等相關文獻面、法制面、實務面及一般會員使用e-house的問卷調查。綜合研究顯示：(1)台灣不動產仲介業與政府本身皆存在影響不動產交易安全推動的問題；(2)不動產仲介業對消費者可能存在委託代理問題及使用不動產網站產生交易成本的疑慮；(3)不動產仲介交易產生的代理問題及交易成本，會影響消費者對不動產交易行為的決策形式；(4)消費者利用網路進行不動產交易，是一項極為專業且繁瑣的消費活動，不動產仲介交易過程必須專業分工，才能消弭或降低代理問題及交易成本，促進交易安全。 本研究針對影響消費者使用仲介網站交易不動產的問題，嘗試建構「e-house網路交易不動產示範網站」的新思維，提供消費者消除或減少代理問題和交易成本，以促進不動產交易安全；另一方面，也考慮到其他不動產專業人士的權益及政府行政效能的提升。新思維的內容包括(1)建構“整合仲介交易過程之不動產專業分工機制” (2)改造e-house成為「e-house網路交易不動產示範網站」(3)研擬不動產網站經營者之資格條件、不動產網站作業內容及消費者與不動產業者網路作業等規範,並建議政府從「政策面」、「法制面」、「資訊面」、「推動面」及「執行面」等五個構面制定配套措施，消弭或降低代理問題及交易成本，推動不動產交易安全。 關鍵字：不動產仲介業、不動產經紀人、交易成本理論、代理理論、代理問題、e-house網路交易不動產示範網站 / Taiwan real estate brokerage industry appeared as company organization in 1977. In 1996, the real estate brokerage business launched onto internet website. In 2007, Public Security Department setup “e-house” network platform. However, from 2002 till now, the real estate transaction disputes still increase annually. Obviously, large organized real estate firms, developed network, sufficient information nor “e-house” network platform will not guarantee consumers who pay high broker fees to receive better and comprehensive real estate transaction safety. This study is to provide “promoting and practicing aspects” to real estate transaction safety network environment to satisfy consumers’ demands. It intends to look into the starting of real estate brokerage business, the current status of real estate brokerage market, the real estate broker problems, the current “e-house” status and its problems by examining the process of Taiwan real estate brokerage, the real estate transaction disputes, the real estate broker operating network, the failure of MLS, the rise of free broker fee network, and the policy objectives of “e-house” network platform by: (1) Demonstration on the basis of transactional cost and broker theory; (2) Comprehension on the procedures and the norms of Real Estate Broker Management Act; (3) Understand the characteristics of three participants, government, real estate service providers and the consumers, in the real estate transaction; (4) Investigate the conflicts between real estate operation network and the existing regulations that makes the promoting real estate transaction safety to be difficult; (5) Analyze the cost structure between private brokerage system and the official “e-house” system and how a consumer may react to two different systems with regards to legal system, practice and survey. A general conclusion from research indicates the following: (1) Problems appear on both sides of private and government agencies to promote safer and more transparent real estate transaction (2) Real estate brokers have doubts on buyers/seller’s trust on representation issue and the actual transactional cost for using a on-line web-site (3) Cost and representation issue arising from the actual real-estate transaction may Affect forms of consumers’ decision making. (4) Procedures for making an online real estate transaction are very complicated for consumers. Professional brokers have to monitor every step of the way in order to eliminate representation issue, reduce transactional cost, and promote safer transactional security. This study focuses on the problems emerging from consumers using an online real-estate website, while trying to demonstrate a safe “e-house” network platform can actually complete the real estate transaction. Once consumers have enough trust in the “e-house” network platform, it could potentially reduce representation issue problems and transactional cost. On the other hand, this system also protects brokers’ privileges while enhancing government’s efficiency. New concepts to be discussed in this study will include (1) Create a professional and integrated real-estate transactional mechanism. (2) Transform “e-house” into a demonstrated network platform for online real-estate transaction. (3) Set strict standards for qualifying private brokerage to operate an online real-estate network platform, to provide website contents, and operational model between consumer and real-estate broker. (4) Propose necessary measures to government in five aspects: “policy”, “legal system”, “information”, “promotion”, “implementation”. Keywords: Real estate brokerage industry, Real estate broker, Agency theory, Transaction cost theory, Representation issue, E-house network of real estate transactions demonstration platform.