任立中臺灣大學:國際企業學研究所楊宗麟2007-11-282018-06-292007-11-282018-06-292005http://ntur.lib.ntu.edu.tw//handle/246246/60207本研究主要利用臺灣某券商交易資料庫,仿造Odean(1998)之研究方法,檢定臺灣股票市場投資人是否有太快出售手中獲利的股票,傾向繼續持有損失的股票之現象,文獻上稱為『錯置效果』,並且考慮投資人有該行為可能的原因是為了要調整投資組合,樣本經假設與處理後,進行錯置效果之檢定,並且利用不同的區隔變數將投資人區隔成若干群體,分別對不同群體作錯置效果之檢定。 研究發現臺灣股票市場存在有錯置效果,與國外論文不同處是錯置效果的存在不會影響投資人的投資績效,經過檢定後發現,臺灣股票市場投資人發生錯置效果的原因可能是為了調整投資組合,經股齡與年齡分群後發現股齡最高的投資人有顯著的錯置效果,可能的解釋為臺灣股票市場散戶投資人較多,週轉率高,所以股齡較高的投資人投資經驗豐富,對投資組合的調整也較迅速。若是經有無信用交易戶與期貨交易戶分群後,發現有信用交易戶與期貨交易戶的投資人有顯著的錯置效果,因為信用交易是具有槓桿作用的投資工具,根據展望理論將會加深錯置效果。根據擇股擇時能力將投資人區分後,發現績效較好的投資人有顯著的錯置效果,這表示擇股擇時能力較佳的投資人調整投資組合的能力出色,享有較高的投資報酬,但受限於資料的完整性,無法進一步分析擇股擇時能力的準則。The tendency to hold losers too long and sell winners too soon has been labeled the Disposition Effect. The purpose of this thesis is test the hypothesis of the existing of Disposition Effect in Taiwan stock market by learning the research method of Odean(1998) and analyzing the trading records at a local brokerage house. These investors demonstrate a preference for realizing winner rather than loser. Their behavior may be motivated by a desire of rebalance portfolios. A different result shows no negative relation between disposition effect and investment returns opposite from Odean(1998). Then I segment the samples by some variables s, and verify the said Disposition Effect on each segment. From this research it is realized that the Disposition Effect does exist in Taiwan stock market, however its existence shows no influence to investors’ performances, this result apparently differs from the one overseas. The segments of experience and age shows that the much more experience the investors have, the more obvious Disposition Effect appears on them. The majority of Taiwan stock market is currently individual investors, and features high turnover rate, therefore the investors experienced more makes a prompter portfolios re-balance. The segments of marginal trading and future trading shows that Disposition Effect appears on both these accounts, since the margin trading is an investment tool featured leverage, depending on prospect theory enhances the Disposition Effect. The segments of investors’ timing and selection ability shows that Disposition Effect appears on those investors having superior performances, which also implies that these investors seems to be specialized in portfolios re-balance and attains higher investment return. Unfortunately, due to the difficulty on gathering the source, it cannot go further to analyze the criteria of timing and selection ability verification.目錄 ....................................................Ⅰ 圖(表)次 ................................................Ⅱ 第一章 序論 ............................................. 1 第一節 研究背景與動機 ......................................... 1 第二節 研究目的 ............................................... 2 第三節 研究架構 ............................................... 3 第二章 文獻探討 .................................. 4 第一節 行為財務理論發展 ....................................... 4 第二節 文獻回顧 ............................................... 8 第三章 研究方法 ................................. 49 第一節 資料來源與處理 ........................................ 49 第二節 資料假設與限制 ........................................ 51 第三節 變數定義與檢定統計量 .................................. 52 第四節 資料分析方法 .......................................... 54 第四章 實證結果分析 ............................. 57 第一節 臺灣股票市場錯置效果 .................................. 57 第二節 依變數分群後之錯置效果 ................................ 61 第五章 結論與建議 ............................... 67 第一節 研究發現與投資策略 .................................... 67 第二節 研究限制 .............................................. 69 第三節 後續研究建議 .......................................... 70 參考文獻 ........................................ 72 圖(表)次 圖2-1 價值函數..............................................13 圖2-2 決策權重函數..........................................13 圖2-3 價值函數-1............................................15 圖2-4 價值函數-2............................................15 圖3-1 臺灣加權股價日線圖,2000年1月至2000年6月 ..........50 圖4-1 投資人年齡層分布百分比................................57 圖4-2 投資人股齡分布百分比..................................58 圖4-3 有無使用期貨交易戶與信用交易戶之比例..................58 圖4-4 依股齡分類後之PGR/PLR.................................61 圖4-5 依年齡分類後之PGR/PLR.................................62 圖4-6 依有無期貨交易與有無信用交易分類後之PGR/PLR...........64 圖4-7 依同時具有與同時不具有期貨、信用交易戶分類之PGR/PLR...64 圖4-8 依擇時擇股能力分群後之PGR/PLR.........................66 圖4-9 投資人擇時擇股能力區隔命名............................66 表4-1 整體資料庫PGR與PLR...................................59 表4-2 10個交易日內沒有買入新股之PGR和PLR...................59 表4-3 剔除10個交易日內沒有買入新股之PGR和PLR..............59 表4-4 調整投資組合與非調整投資組合投資人獲利率比較...........60 表4-5 賣出獲利股票與帳上損失股票10、20個交易日後之平均報酬率....60 表4-6 依股齡分群後之PGR與PLR...............................61 表4-7 依年齡分群後之PGR與PLR...............................62 表4-8 依信用交易、期貨交易分群後之PGR與PLR.................63 表4-9 依信用交易與期貨交易分群後之PGR與PLR.................64 表4-10 依擇股擇時能力分群後之PGR與PLR.......................65672405 bytesapplication/pdfen-US錯置效果展望理論Disposition EffectProspect Theory臺灣股票市場錯置效果之研究thesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/60207/1/ntu-94-R92724065-1.pdf