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  • 學位論文

機構投資者行為之間的囚犯困境-以臺灣股市權值個股為例

The Prisoner's Dilemma between Institutional Investors’ Behavior and Value Weighted Stocks in Taiwan

指導教授 : 林建甫

摘要


本研究考量投資實務上,機構投資者之間相互的報酬率評比表現,才是關鍵的績效指標,因此本研究將探討機構投資者同時、個別的買進、賣出臺灣股市權值個股的行為。本研究使用獨創之『股票供需理論』與『股票賽局理論』,假設臺灣股票市場中,機構投資者之間的最適解將有以下兩種狀況為主:一為囚犯困境關係(多頭困境)、二為囚犯困境關係(空頭困境)。本研究實務貢獻有三:(1)機構投資者同步買超的多頭困境關係中,短期(10天以下)的淨累積金額為正數時,可延續中期(40天以下)的報酬率為正的機率結果為顯著。(2)機構投資者同步賣超的空頭困境關係中,短期(20天以下)的淨累積金額為負數時,可延續短期(20天以下)的報酬率為正(本研究實證為先賣後買方式)的機率結果為顯著。(3)機構投資者個別淨買超的囚犯困境關係中,短期(10天以下)的淨累積金額為正數時,外資可延續中期(40天以下)的報酬率為正的機率結果為顯著,相較於內資僅可延續短期(5天以下)的報酬率為正的機率結果為顯著。

並列摘要


Consider on the relatively performance return of Institutional investor is the key performance indication on the investment practice, thus, this research will explore the behavior of institutional investors simultaneously or separately buying and selling weighted stocks in the Taiwan stock market. Also, this research uses the original “stock supply and demand theory” and “stock game theory”. Assumed that the best solution among institutional investors in the Taiwan stock market will be based on the following two conditions: First is the prisoner’s dilemma (long-term dilemma) The second is prisoner dilemma (short-term dilemma). There are three practical conclusions of this research: (1) If the short-term (10 days or less) net cumulative amount is positive while the institutional investor's long-term dilemma of long-term buyouts is positive, the probability that the return rate in the medium-term (under 40 days) would be significantly positive. (2) If the short-term (under 20 days) net accumulated amount is negative, while the institutional investor’s short-term dilemma of short-term buyouts is negative, the continuous short-term (less than 20 days) return rate is significantly positive. (3) If the prisoner's dilemma in which individual institutional investors have positive buy position, while the short-term (less than 10 days) net accumulative amount is positive, the outcome of a sustained return rate for foreign capital in the medium term (less than 40 days) is significant. However, the probability of a positive rate of return is only significant compared to the fact that domestic capital can only extend for a short period (less than 5 days).

並列關鍵字

Value Weighted Stocks

參考文獻


1. 周賓凰、鍾惠民,1999,「形成與持有期限、時間序列可預測性與反向操作策略績效」,中國財務學刊,第七卷第二期,第1-27頁。
2. 楊踐為,2001,「臺灣店頭市場報酬率、機構性投資者買賣超及交易策略之研究」,中國財務學刊,第九卷第2期,第67-89頁。
5. 林昭賢、許溪南,2004,「期貨交易者之交易行為及績效之研究」,臺灣管理學刊,第4 卷第1 期,第107-122頁。
6. 許溪南、徐守德、郭玟秀、鄭麗惠,2007,「外資介入對臺股指數與指數期貨正逆價差之影響」,經濟研究,第43 卷第1期,第65-91 頁。
7. 林昭賢、許溪南、李宏志,2008,「臺灣期貨交易者與市場報酬之互動關係」,財務金融學刊,第16券第3期,第150-172 頁。

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