Dynamics of the Behavior of Individual Investors in Tehran Stock Exchange

Document Type : Original Article

Authors

1 Ph.D. Candidate in Fianacial Management, Shahid Beheshti University, Tehran, Iran

2 Associate Prof, Department of Management, Alzahra University, Tehran, Iran.

Abstract

The aim of this study is to investigate the behavior of individual investors from the perspective of behavioral errors and relationship between them in Tehran Stock Exchange. For this purpose, we examined the portfolio statement of individual and institutional investors during a five-year period from 2012 to 2016. The result show that individual investors make poor trading decisions: stocks they purchase underperform those they sell. On the other hand, both individual investors tend to sell stocks that have appreciated in price, but not those that have depreciated in price (consistent with a disposition effect). Finally, they appear to believe that past returns are indicative of future returns (a representativeness bias). In the following, the analysis of multiple cognitive errors is done to determine whether investors with a cognitive error are prone to other cognitive errors. The results indicate that the behavior of some investors represents more than one cognitive error.

Keywords


  1. Badri, A., & Fatollahi, F., (2014), Return momentum, Evidence from Tehran Stock Exchange, Journal of Investment Knowledge, No 9, 1-20 . (In Persian)
  2. Badri, A., & Kucheki, A. (2013), Trading volume and stock return, evidence of Tehran Stock Exchange Based on behavioral financial analysis, journal of financial accounting, No 18,1-24. (In Persian)
  3. Badri, A., & Gudarzi, N. (2013), Behavioral finance, representativeness bias and basic accounting variables, evidence of Tehran Stock Exchange, Journal of Empirical studies of financial accounting, No 43, 57-88. (In Persian)
  4. Barber, B.M. & T. Odean (2000). Trading Is Hazardous to Your Wealth: The Common Stock Investment Performance of Individual Investors. Journal of Finance, 55, 773-806.
  5. Barber, B.M. & T. Odean (2001). Boys Will Be Boys: Gender, Overconfidence, and Common Stock Investment, Quarterly Journal of Economics, 116, 261-292.
  6. Barber, B.M., T. Odean, & N. Zhu (2009). Do Retail Trades Move Markets? Review of Financial Studies, 22(3), 151-186.
  7. Barber, B.M. & Odean, T. (2011). The Behavior of Individual Investors, Electronic copy available at: http://ssrn.com/abstract=1872211 .
  8. Barberis, N., & Huang, M. (2009). Preferences with frames: A new utility specification that allows for the framing of risks. Journal of Economic Dynamics and Control, 33, 1555–1576.
  9. Benartzi, S. (2001). Excessive extrapolation and the allocation of 401(k) accounts to company stock. Journal of Finance, 56, 1747–1764.
  10. Chen, G., Kim, K., Nofsinger, J. & Rui, O. (2007), Trading Performance, Disposition Effect, Overconfidance, Representative Bias, and Experience of Emerging Market Investors. Journal of Behavioral Decision Making, 20, 425-451
  11. Dhar, R., & Kumar, A. (2001). A non-random walk down the main street: Impact of price trends on trading decisions of individual investors. Working paper, International Center for Finance, Yale School of Management, New Haven, CT.
  12. De Bondt, J.B., & Thaler, R. (1995). Financial decision making in markets and firms: a behavior perspective. Handbooks of Operations Research and Management Science.
  13. Fallahpoor, S., & Abdollahi, G. (2010), Identification and weighting behavioral biases of investors in Tehran Stock Exchange, Journal of financial research, No 31, 99-120. (In Persian)
  14. Fan, J.X., & Xiao, J.J. (2005). A cross-cultural study in risk tolerance: comparing Chinese and Americans. SSRN Paper, 939438.
  15. Feng, L., & Seasholes, M.S., (2005). Do investor sophistication and trading experience eliminate behavioral biases in financial markets? Review of Finance, 9(3), 305–351.
  16. Frazzini, A. (2006). The disposition effect and underreaction to news. Journal of Finance, 61, 2017–2046.
  17. Ghalibaf, H., Kordi, M., & Ajdari, F. (2013), Overconfidence of Investment Managers and Performance Indicators for Mutual Funds, Journal of Financial Management Strategy, 1 (1), 1-22, (in Persian)
  18. Genesove, D., & Mayer, C. (2001). Loss aversion and seller behavior: Evidence from the housing market. The Quarterly Journal of Economics, 116(4), 1233–1260.
  19. Goetzmann, W.N., & Kumar, A., (2008). Equity portfolio diversification. Review of Finance, 12 (2), 433–463.
  20. Grinblatt, M., Keloharju, M., (2001). What makes investors trade? The Journal of Finance, 56(3), 589– 616.
  21. Grossman, Sanford J., & Stiglitz, J. E. (1980). On the impossibility of informationally efficient markets, American Economic Review, 70(2), 393–408.
  22. Heath, C., Huddart, S., Lang, M., (1999). Psychological factors and stock option exercise. The Quarterly Journal of Economics, 114(1), 601–627.
  23. Henderson, V. (2012). Prospect theory, liquidation, and the disposition effect. Management Science, 58(3), 445–460.
  24. Hens, T., & Vlcek, M., (2011). Does prospect theory explain the disposition effect? Journal of Behavioral Finance, 12(4), 141–157.
  25. Ivkovic, Z., C. Sialm, and S. Weisbenner (2008). Portfolio Concentration and the Performance of Individual Investors. Journal of Financial and Quantitative Analysis, 43(1), 613-656.
  26. Jamshidi, N., & Galibaf Asl, H. (2018). Studying the Effect of Investors’ Personality on their Business Behavior and Investment Performance: Evidences of Tehran Stock Exchange. Financial Research Journal, 20(1), 75-90. (In Persian)
  27. Ji, L., & Zhang, Z. (2006). To buy or sell: Cultural differences in stock market decisions based on price trends. Working paper, Queen’s University, Kingston, Ontario.
  28. Jin, L., & Scherbina, A. (2011). Inheriting losers. The Review of Financial Studies, 24, 786–820.
  29. Kyle, A.S., Ou-Yang, H., & Xiong, W. (2006). Prospect theory and liquidation decisions. Journal of Economic Theory, 129, 273–288.
  30. Mousavi, M., Salehi, M., Maryam, SH., & Bakhshian, A. (2014), The profitability of momentum strategy and the impact of trading volume on it in the Tehran Stock Exchange, Journal of financial engineering and portfolio management,No 25, 107-123 . (In Persian)
  31. Odean., T.(1998), Are Investors Reluctant to Realize Their Losses? Journal of Finance, 5, Pp 1775-1798.
  32. Odean, T. (1999). Do Investors Trade too Much? American Economic Review, 89(5), 1279-1298.
  33. Shapira, Z., & Venezia, I. (2001). Patterns of behavior of professionally managed and independent investors. Journal of Banking and Finance, 25, 1573–1587.
  34. Shefrin, H., Statman, M., (1985). The disposition to sell winners too early and ride losers too long: Theory and evidence. The Journal of Finance, 40, Pp 777–790.
  35. Shefrin, H. (2010), Behavioralizing Finance, research paper. 10-01: 1-161.
  36. Statman, M. (2010). The cultures of risk tolerance. SSRN Paper No.:1647086.
  37. Tekce, B, & Yılmaz., N. (2015). Are individual stock investors overconfident? Evidence from an emerging market, Journal of Behavioral and Experimental Finance, 5, 35–45.
  38. Yates, J. F., Zhu, Y., Ronis, D. L., Wang, D. F., Shinotsuka, H., & Toda,W. (1989). Probability judgment accuracy: China, Japan, and the United States. Organizational Behavior and Human Decision Processes, 43, 147–1