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| Title: | 券商報告之資訊內涵與外資投資行為對股價報酬之影響
Stock Price Reactions to Information Content of Brokerage Analysts’ Reports |
| Authors: | 葉彥廷 |
| Contributors: | 岳夢蘭
葉彥廷 |
| Keywords: | 資訊價值
投資建議
平均累積異常報酬
Information value
Investment recommendation
Average cumulative abnormal returns |
| Date: | 2013 |
| Issue Date: | 2014-07-14 11:24:46 (UTC+8) |
| Abstract: | 由於外資券商多半在全球皆設有據點，所以在掌握公司資訊、投資經驗、充裕的資金後盾和交易技巧等方面都相當優異，因此外資所發布之研究報告也相當為投資人所重視。另外近年來台股總市值中，外資所持有之比例有逐漸攀升的趨勢，使得外資的動向逐漸成為市場上投資人所關心的焦點。本研究主要探討外資券商所發佈之投資評等在資訊內含價值上與本土券商所發佈之投資評等之差異，以及外資投資行為是否會對券商報告發佈所產生之異常報酬造成影響，因此本研究採事件研究法以及迴歸模型進行相關研究，經研究結果發現：(一)整體外資券商報告在宣告日之前的期間，所產生之累積平均異常報酬均顯著為正，而自宣告日之後，外資券商報告對累積平均異常報酬的影響即轉為負向。(二)外資發佈「買進」報告時，不論宣告日前或是宣告日後對累積平均異常報酬的影響均顯著為負。(三)在宣告日前的事件窗口中，外資報告發佈所產生之累積平均異常報酬並未明顯異於本土券商報告，表示在資訊價值上外資報告並未顯著優於本土報告。(四)在宣告日之後的事件窗口，外資券商發佈報告所帶來的累積平均異常報酬均為負，且顯著小於本土券商，而本土券商報告於宣告日後仍能產生正的累積平均異常報酬，相對於外資券商報告較有資訊價值。(五) 連續賣超天數與券商報告所產生之累積平均異常報酬成反向關係。(六) 券商報告發佈當日被評等個股的外資成交比重與券商報告所產生之累積平均異常報酬成反向關係。
Most of foreign brokerages have strong presence in the world, hence they have great investment experience, abundant funds, and special investment strategies, etc. Due to the above reasons, the research analyst reports published by foreign brokerages are highly valued by investors. In recent year, the proportion of foreign capital to the total capital in Taiwan stock market has grown rapidly. Therefore, investors have been interested in trading strategies of foreign institution investors.
This study examines the impacts of the research analyst reports, published by local brokerages and foreign brokerages, on stock market returns, with a focus on the difference of the information contents between local and foreign brokerages analyst reports. This study adopts event study and employs a regression model to investigate the relationship between cumulative abnormal returns and the research analyst reports. The research findings show that: (1) Average cumulative abnormal returns prior to the date that foreign brokerages published the investment recommendations are significantly positive. However, after the announcement date, the cumulative average abnormal returns turned negative. (2) During the period prior to the announcement date, the cumulative abnormal returns induced by the publishing of foreign brokerage reports are not significantly different from those induced by the publishing of local brokerage reports, indicating that foreign brokerage reports have no information advantage over the local brokerage reports. (3) Consecutive days of overselling by foreign institution investors have negative impact on cumulative average abnormal returns. (4) Foreign institution investors’ trading proportion of those stocks analyzed by foreign brokerages is negatively related to the cumulative abnormal returns. |
| Reference: | 一、 英文文獻
1. Asquith, P., Mikhail, M. B., & Au, A. S. (2005). Information content of equity analyst reports. Journal of Financial Economics, 75(2), 245-282.
2. Barber, B. M., Lehavy, R., & Trueman, B. (2007). Comparing the stock recommendation performance of investment banks and independent research firms. Journal of Financial Economics, 85(2), 490-517.
3. Bauman, W. S., Datta, S., & Iskandar‐Datta, M. E. (1995). Investment analyst recommendations: A test of ‘The announcement effect’and ‘The valuable information effect’. Journal of Business Finance & Accounting, 22(5), 659-670.
4. Bodnaruk, A., Massa, M., & Simonov, A. (2008). The dark role of investment banks in the market for corporate control. Unpublished working paper.
5. Brav, A., & Lehavy, R. (2003). An Empirical Analysis of Analysts` Target Prices: Short‐term Informativeness and Long‐term Dynamics. The Journal of Finance, 58(5), 1933-1968.
6. Chan, K. W., Chang, C., & Wang, A. (2009). Put your money where your mouth is: Do financial firms follow their own recommendations? The Quarterly Review of Economics and Finance, 49(3), 1095-1112.
7. Davies, P. L., & Canes, M. (1978). Stock prices and the publication of second-hand information. Journal of Business, 43-56.
8. Dechow, P. M., Hutton, A. P., & Sloan, R. G. (2000). The Relation between Analysts` Forecasts of Long‐Term Earnings Growth and Stock Price Performance Following Equity Offerings*. Contemporary Accounting Research, 17(1), 1-32.
9. Dugar, A., & Nathan, S. (1995). The Effect of Investment Banking Relationships on Financial Analysts` Earnings Forecasts and Investment Recommendations*. Contemporary Accounting Research, 12(1), 131-160.
10. Dvořák, T. (2005). Do domestic investors have an information advantage? Evidence from Indonesia. The Journal of Finance, 60(2), 817-839.
11. Ellis, K., Michaely, R., & O’Hara, M. (2004). Competition in investment banking: Proactive, reactive: or retaliatory.
12. Ferreira, M. A., Matos, P., & Pereira, J. (2009). Do foreigners know better? A comparison of the performance of local and foreign mutual fund managers. A Comparison of the Performance of Local and Foreign Mutual Fund Managers (November 20, 2009).
13. Grinblatt, M., & Keloharju, M. (2000). The investment behavior and performance of various investor types: a study of Finland`s unique data set. Journal of Financial Economics, 55(1), 43-67.
14. Guagliano, C., Linciano, N., & Contento, C. M. (2013). The impact of financial analyst reports on small caps prices in Italy. Economic Notes, 42(3), 217-246.
15. Huth, W. L., & Maris, B. A. (1992). Large and small firm stock price response to “Heard on the Street” recommendations. Journal of Accounting, Auditing & Finance, 7(1), 27-44.
16. Li, X. (2005). The persistence of relative performance in stock recommendations of sell-side financial analysts. Journal of Accounting and Economics, 40(1), 129-152.
17. Liu, P., Smith, S. D., & Syed, A. A. (1990). Stock price reactions to the Wall Street Journal`s securities recommendations. Journal of Financial and Quantitative Analysis, 25(03), 399-410.
18. Michaely, R., & Womack, K. L. (1999). Conflict of interest and the credibility of underwriter analyst recommendations. Review of financial studies, 12(4), 653-686.
19. Otten, R., & Bams, D. (2007). The performance of local versus foreign mutual fund managers. European Financial Management, 13(4), 702-720.
20. Shukla, R. K., & Van Inwegen, G. B. (1995). Do locals perform better than foreigners?: An analysis of UK and US mutual fund managers. Journal of Economics and Business, 47(3), 241-254.
21. Stickel, S. E. (1995). The anatomy of the performance of buy and sell recommendations. Financial Analysts Journal, 25-39.
22. Womack, K. L. (1996). Do brokerage analysts` recommendations have investment value? The Journal of Finance, 51(1), 137-167.
二、 中文文獻
1. 池祥萱，蕭君怡. (2005). 券商投資評等報告的資訊內涵-本國券商與外資券商的比較: 金融風險管理季刊.
2. 吳宜鴻. (2007). 外資券商分析師目標價宣告之資訊內涵. 東華大學企業管理學系學位論文.
3. 沈中華，池祥麟，高于婷. (2004). 證券商股票推薦之利益衝突及影響. 台灣金融財務季刊, 6(2), 1-20.
4. 周松霈. (2013). 市場對券商投資評等之反應實證. 臺灣大學財務金融學研究所學位論文.
5. 周漢文. (2011). 券商研究報告之價值–以台灣為例. 臺灣大學財務金融學研究所學位論文, 1-35.
6. 馬若荃. (1997). 分析師票選股票績效之實證研究, 中興大學會計研究所未出版碩士論文.
7. 高武忠. (2006). 各系外資研究報告之可信度及對個股股價表現影響. 臺灣大學財務金融學研究所學位論文, 1-128.
8. 張嘉宏. (2001). 分析師投資推薦之績效持續性, 私立逢甲大學會計與財稅研究所碩士論文.
9. 張慧蘋. (1995). 券商票選個股資訊內涵之實證研究: 國立台灣大學會計研究所碩士論文.
10. 連婉琦. (2011). 產業專精與本土券商及外資券商之推薦績效. 嶺東科技大學高階主管企管碩士在職專班 (EMBA) 學位論文, 1-48.
11. 陸逸威. (2013). 外資券商分析師投資評等與目標價修正之宣告效果探討. 臺北大學經濟學系學位論文.
12. 游智賢，賴育志. (1999). 外資資訊領先地位之探討. 中國財務學刊, 第七卷第三期, 2-26.
13. 黃思衡. (2003). 外資券商投資評等宣告之資訊內涵: 商譽與自我利益之衝突探討.
14. 盧志昌. (1999). 證券投顧公司投資組合競賽傳達訊息之研究: 國立中正大學財務金融研究所碩士論文.
15. 賴紀誠，林問一，劉亞秋. (2011). 台灣股市券商分析師盈餘預測之利益衝突. 臺大管理論叢, 22(1), 357-389. |
| Description: | 碩士
國立政治大學
財務管理研究所
101357004
102 |
| Source URI: | http://thesis.lib.nccu.edu.tw/record/#G0101357004 |
| Data Type: | thesis |
| Appears in Collections: | [財務管理學系] 學位論文
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