基金經理人的認知偏誤與基金績效之關連性

Relationship between Fund Managers' Cognitive Biases and Fund Performance

張幸惠(Hsin-Hue Chang)；姚名麗(Min-Li Yao)

基金績效 ； 認知偏誤 ； 自我申辯 ； 過度自信 ； Fund performance ； Cognitive biases ； Self-justification ； Overconfidence

企業管理學報

101期（2014 / 06 / 01）

67 - 87

繁體中文

本文主要探討過度自信及自我申辯的認知偏誤是否會影響基金經理人的操作績效。根據相關的行為財務研究，以周轉率及前期績效排名做為過度自信的代理變數，而以基金經理人更換做為降低自我申辯的代理變數。研究樣本為國內股票型基金，共117擋，研究期間自2001年至2010年。本研究採用縱橫資料模型進行參數估計。實證結果顯示，過度自信傾向正向顯著地影響基金績效，隱含過度自信的基金經理人有機會可以獲得較高的風險報酬。撤換基金經理人無法馬上改善績效，究其原因可能是新任經理人會優先處理虧損股票，調整投資組合，造成基金績效不彰。穩健性測試依然支持認知偏誤會影響基金經理人的績效。

The purpose of this study is to investigate if cognitive biases from overconfidence and self-justification influence fund managers' performance. Based on behavioral finance research, this study employs fund turnover ratio and performance rank measured by the lagged fund return as the proxy variables of overconfidence and the change of fund manager as the proxy variable of decreasing self-justification. A set of sample consists of 117 domestic equity funds and the empirical period is from 2001 to 2010. This study employs a panel data model to conduct the estimation procedure. As results, the propensity of overconfidence has a significant and positive effect on fund performance. This implies overconfident fund managers have opportunities to obtain returns with higher risky. The change of fund manager could not improve fund performance immediately because new fund managers have to sell losers held too long by ex-managers and adjust the fund portfolio, which results in underperforming. Robustness test also suggests that cognitive biases influence fund managers' performance.

1. 周賓凰、池祥萱、林煜恩(2009)。處份效果、強化承諾與共同基金績效。管理評論，28(4)，1-18。
   連結：
2. 林舒柔、湯明哲(2007)。企業創業投資中的承諾續擴：認知偏誤觀點。台大管理論叢，18(1)，35-80。
   連結：
3. 張幸惠(2013).An investigation of fund managers' escalation of commitment.臺灣金融財務季刊,14(1),91-114.
   連結：
4. 劉永欽、洪榮華(2006)。過度自信與股市交易行為關聯性之實證研究─以國內證券商為例。中山管理評論，14(3)，569-603。
   連結：
5. 蔡永順、劉文智(2011)。台灣機構投資人過度自信行為實證研究。台灣管理學刊，11(2)，91-126。
   連結：
6. Barber, B. M.,Lee, Y-T.,Liu, Y-J.,Odean, T.(2007).Is the aggregate investor reluctant to realize losses? evidence from Taiwan.European Financial Management,13(3),423-447.
7. Barber, B. M.,Odean, T.(2000).Trading is hazardous to your wealth: The common stock investment performance of individual.Journal of Finance,105(2),773-806.
8. Barber, B. M.,Odean, T.(1999).The courage of misguided conviction.Financial Analysis Journal,55(6),41-55.
9. Barber, B. M.,Odean, Terrance(2001).The internet and the investor.The Journal of Economic Perspectives,15(1),41-54.
10. Benos, A.(1998).Aggressiveness and survival of overconfident traders.Journal of Financial Markets,1,353-383.
11. Beshears, J.,Milkman, K. L.(2011).Do sell-side stock analysts exhibit escalation of commitment?.Journal of Economic Behavior & Organization,77,304-317.
12. Bliss, R. T.,Potter, M. E.(2002).Mutual fund managers: does gender matter?.Journal of Business & Economic Studies,8,1-15.
13. Breusch, T.,Pagan, A.(1980).The lagrange multiplier test and its applications to model specification in econometrics.Review of Economic Studies,47(1),239-253.
14. Carhart, M. M.(1997).On persistence in mutual fund performance.The Journal of Finance,52,57-82.
15. Chen, J.,Hong, H.,Huang, G. M.,Kubik, J. D.(2004).Does fund size erode mutual fund performance? the role of liquidity and organizational.American Economic Review,94(5),1276-1302.
16. Chow, E. H.,Lin, H. M.,Lin, Y. M.,Weng, Y.C.(2011).The performance of overconfident fund managers.Emerging Markets Finance & Trade,47(3),21-30.
17. De Long, J. B.,Shleifer, A. L.,Summers, H.,Waldmann, R. J.(1991).The survival of noise traders in financial markets.Journal of Business,64,1-20.
18. Dhar, R.,Ning, Z.(2006).Up close and personal: Investor sophistication and the disposition Effect.Management Science,52,726-740.
19. Festinger, L.(1957).A theory of cognitive dissonance.Stanford, CA:Stanford University Press.
20. Gallo, J. G.,Lockwoor, L. J.(1999).Fund management changes and equity style shifts.Financial Analysis Journal,55,44-52.
21. Garvey, R.,Murphy, A.(2004).Are professional traders too slow to realize their losses?.Financial Analysts Journal,60(4),35-43.
22. Gervais, S.,Odean, T.(2001).Learning to be overconfident.Review of Financial Studies,14(1),1-27.
23. Griffin, J.,Nardari, F.,Stulz, R. M.(2007).Do investors trade more when stocks have performed well? evidence from 46 countries.Review of Financial Studies,20(3),905-951.
24. Grinblatt, M.,Titman, S.(1994).A study of mutual fund returns and performance evaluation techniques.Journal of Financial and Quantitative Analysis,29,419-444.
25. Hausman, J.(1978).Specification tests in econometrics.Econometrics,46,1251-1271.
26. Hirshleifer, D.,Luo, G. Y.(2001).On the survival of overconfident traders in a competitive securities market.Journal of Financial Market,4,73-84.
27. Jan, Y.C.,Hung, M.W.(2003).Mutual fund attributes and performance.Finance Services Review,12,165-178.
28. Kacperczyk, M. T.,Sialm, C.,Zheng, L.(2005).On the industry concentration of actively managed equity mutual funds.Journal of Finance,60(4),1983-2011.
29. Kahneman, D.(Ed.),Tversky, A.(Ed.)(1982).Judgment under Uncertainty: Heuristics and Biases.Cambridge University Press.
30. Kahneman, D.,Riepe, M. W.(1998).Aspects of investor psychology.Journal of Portfolio Management,24(4),52-65.
31. Kahneman, D.,Tversky, A.(1979).Prospect theory: an analysis of decision under risk.Econometrica,47,263-292.
32. McNamara, G.,Moon, H.,Bromiley, P.(2002).Banking on commitment: intended and unintended consequence of and organization's attempt to attenuate escalation of commitment.Academy of Management Journal,45(2),443-452.
33. Odean, T.(1998).Volume, volatility price, and profit when all traders are above average.Journal of Finance,53(6),1887-934.
34. Odean, T.(1998).Are investors reluctant to realize their losses?.Journal of Finance,53(5),1775-1798.
35. Payne, T. H.,Prather, L.,Bertin, W.(1999).Value creation and determinants of equity fund performance.J. Bus. Res.,45(1),69-74.
36. Pompian, M. M.(2006).Behavioral finance and wealth management.New York:John Wiley & sons Ltd..
37. Puetz, A.,Ruenzi, S.(2011).Overconfidence among professional investors: evidence from mutual fund managers.Journal of Business Finance & Accounting,38(5/6),684-712.
38. Ritter, J.(2003).Behavior finance.Pacific-Basin Finance Journal,11,777-790.
39. Shefrin, H.,Statmen, M.(1985).The disposition to sell winners too early and ride losers too long: theory and evidence.Journal of Finance,40,777-790.
40. Statmen, M.,Thorley, S.,Vorkink, K.(2006).Investor overconfidence and trading volume.Review of Financial Studies,49(4),1531-1565.
41. Staw, B.(1976).Knee-deep in big muddy: a study of escalating commitment to a chosen course of action.Organizational Behavior and Human Performance,16,27-44.
42. Staw, B.(1981).The escalation of commitment to a course of action.Academy of Management Review,6(4),577-587.
43. Staw, B. M.,Barsade, S. G.,Koput, K. W.(1997).Escalation at the credit window: a longitudinal study of bank executives' recognition and write-off problem loans.Journal of Applied Psychology,82(1),130-142.
44. Tufano, P.,Sevick, M.(1997).Board structure and fee-setting in the U.S. mutual fund industry.Journal of Financial Economics,46,321-356.
45. Yan, X.(2008).Liquidity, investment style, and the relation between fund size and fund performance.Journal of Financial Quantitative Analysis,43(3),741-768.
46. 闕河士、方怡(2011)。基金持股不流動性對共同基金規模與績效關係之影響。中華管理評論國際學報，14(20)，1-20。

1. Yang, Wei-Ling,Nie, Wei-Ying,Ho, Po-Hsin(2016).Family-controlled Firms, Overconfident CEOs, and Investment Policy.企業管理學報,111,1-31.
2. 顏端瑤,藍毓莉,張力(2019)。年金改革對高齡者投資行為之影響。慈濟科技大學學報，9期=總3，1-21。