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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/31778

    Title: 三大法人在期貨市場買賣超對股價報酬率非線性影響之探討
    Other Titles: The nonlinear study of the effect of the net buy/sell position of three institutional investors on the Stock returns
    Authors: 李仁君;Lee, Jen-chun
    Contributors: 淡江大學財務金融學系碩士在職專班
    聶建中;Neih, Chien-chung
    Keywords: 三大法人;期貨買賣超;平滑移轉迴歸模型;three institutional investors;the net buy/sell position;Smooth Transition AutoRegression
    Date: 2009
    Issue Date: 2010-01-11 01:15:20 (UTC+8)
    Abstract: 本研究係以台灣期貨交易所公佈之三大法人(投信、外資、自營商)每日期貨未平倉餘額之契約金額的資料進行分析研究,透過對加權股價指數收盤價之日資料,探討三大法人在期貨市場上的買賣超是否對股價報酬率存在非線性之影響。

    在研究方法上本文先對樣本資料作單根檢定,再採用Granger and Teräsvirta(1993)and Teräsvirta(1994)提出的平滑移轉迴歸模型(Smooth Transition AutoRegression, STAR)來探討在不同的轉換變數模型下,投信當期的期貨買賣超、外資當期的期貨買賣超、自營當期的期貨買賣超以及自營前2期的期貨買賣超對股價報酬率非線性影響之探討。

    By analyzing the daily open interest from major institutional investors(including FINI, Investment Trust Companies and Futures Proprietary Merchants and Securities Dealers) and the corresponding closing price of TAIEX(Taiwan Stock Exchange Capitalization Weighted Stock Index), this study probes into whether a net buy/sell position by major institutional investors in futures market has nonlinear impact on rate of return on stock price.

    In methodology, first we employ unit root test on the samples, and then utilize the Smooth Transition AutoRegression(STAR) model, Granger and Teräsvirta(1993)and Teräsvirta(1994), to verify the nonlinear impacts between (1)net position by Investment Trust Companies in futures market for current period, (2)net position by FINI in future market for current period, and (3)net position by Dealers in future market for the last 3 periods and the rate of return on stock price, under different levels of transformation variables.

    According to our empirical research, the Dealers has the greatest influence on the rate of return on stock price, followed by FINI and Investment Trust Companies. A good explanation might be that dealers tend to be arbitrary in making investment decisions given the fact that their performances are basically measured by profit making. In our model, their net position in futures markets has positive and significant impact on the rate of return on stock price at all level of transformation variables. FINI, dragged by their vast holdings, however focus more on portfolio allotment and risk diversification. The policy of giving higher priority to controls of risks leads to a passive, compared to that of dealers’, strategy of investment. As a result, domestic investors used to follow the trading strategy of FINI may be misled by solely leveraging FINI’s position in futures market. As for Investment Trust Companies, they are relatively conservative in futures trading and hence have mere influence on rate of return on stock price, due to restrictions on regulations and fund types.
    Appears in Collections:[財務金融學系暨研究所] 學位論文

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