國內不動產投資信託發行至今已屆兩年，從各檔REITs上市造成大量的超額認購的盛況顯示，REITs顯然將成為一項重要的投資工具。但國內缺乏市場實際表現的討論，因此本研究針對國內施行狀況進行研究。在各檔績效表現方面，以富邦二號表現較佳，三鼎與基泰之星之表現則略顯較差，而且各檔REITs均無顯著的股價蜜月期。在整體REITs市場方面，透過T-REITs指數的建立與指數走勢，得知目前國內REITs整體呈上升的趨勢；而於流通情況方面大致在新REITs上市當日，有相對較高的成交量之外，整體而言國內REITs週轉率明顯低於大盤與營建股；在報酬與風險方面，顯示T-REITs是具有低風險、穩定報酬特性的投資標的。 本文檢驗T-REITs加入投資組合之可行性，由相關係數分析得知，T-REITs相較於其他股票提供較佳的避險能力，是具有對抗通貨膨脹與利率變動之規避風險功用的投資工具，且T-REITs與其他股票走勢的相關性低，乃是分散投資組合風險的有效途徑。另外，由共整合檢定結果顯示，T-REITs指數與大盤指數以及T-REITs與營建股價指數之間，均無共整合之均衡關係存在，表示投資人可達到投資分散風險之目的。整體而言，國內REITs是一項值得加入投資組合的商品。 / T-REITs has been launched for two years, and the oversubscribtion of all REITs demonstrates that T-REITs has become an important investment instrument. But due to the lack of study on the market performance in the domestic area, therefore derives the necessity of relative research. We find that Fubon No. 2 REIT REIT is better than the others, and none of the REITs have honeymoon period. Through the establishment of T-REITs index, we discover that T-REITs has been trending up; the turnover rates are relatively higher when T-REITs first goes public, but significantly lower than that of market index and property stocks overall. Moreover, our findings indicate that T-REITs is an investment instrument which provides stabile return at a low risk. In this study, We investigate if T-REITs is capable of hedging. From the correlation analysis, we discover that T-REITs provides a better hedge over other stocks as an investment instrument, which is effective against inflation and variation of interest rates. And also, the cointergration test shows that T-REITs, market index and property stocks are not cointergrated, suggesting that markets tend to behave differently during the time of our observation; hense the investment portfolio shares the benefit of diversification by including REITs, therefore worthy of investment.

估價平滑相關研究大多採取Quan and Quigley（1991）提出的理性行為解釋估價師的部分調整行為。然而財務行為學認為行為人通常具有非理性的行為，因此本研究以保守性心理偏誤解釋部分調整行為，探討非理性心理對於估價師之影響。為了捕捉估價師個體的行為資訊，本研究以台灣不動產投資信託的重估價結果作為研究資料，檢視估價師對市場新資訊和過去估值的處理行為。本研究首先應用部分調整模型進行實證分析，結果發現台灣估價師確實具有部分調整行為，相對較低估市場價值資訊的權重，而此類保守性偏誤即為總體估價平滑效果的展現。此外進一步以Tobit Model進行市場價值資訊權重的影響因素分析，結果發現市場資訊的權重會受到心理效果而改變，當估價方法價值差異率越大時，估價師會降低市場資訊的權重，展現了對模糊事件的趨避傾向。捷思法可以幫助估價師提升效率，但過度依賴捷思法亦有可能引發錯誤和偏差；本研究發現模糊趨避效果顯示估價師更重視市場資訊的可信度，似較符合估價證據之要求，故非理性心理偏誤對估價師言非全為負面影響。 / Previous appraisal smoothing studies were based on the appraiser rational behavior assumptions which developed by Quan and Quigley (1991) and found that appraisers do insufficiently react to market fluctuate. However, this paper starts with behavioral finance theory to investigate the partial adjustment behavior of Taiwan appraisers, using the reappraisals of Taiwan Real Estate Investment Trust (T-REITs) to show each appraiser’s behavioral intention at disaggregate level which could be diversified away at aggregate level. This study tests the partial adjustment model to observe the weights of new market information and previous estimates of the same property reappraisal. The results show that Taiwan appraisers more rely on the previous estimates, namely the conservatism bias, which will induce the appraisal smoothing at aggregate level. Further, the Tobit Model is employed to test the influence factors of appraisers’ weight on new market information, and the results show weights on new market information will be affected by appraisers’ heuristics. There is a negative effect to weights on new market information which stands for the ambiguity aversion of appraisers. It shows appraiser do concern about the reliability of market evidence which is much accord with the appraisal normative model.