주식의 복권성향과 개인투자자의 자기과신성향 사이의 관계에 대한 연구
Lottery-Like Stocks and Overconfidence by Individual Investors
0
조회
0
다운로드
11
인용
0
참고문헌
키워드
초록
본 연구는 개인투자자의 시장참여 비중이 큰 국내 주식시장을 대상으로 개인투자자의 비이성적 투자행태와 주식의 복권성향 사이의 관계에 대해 살펴본다. 발생확률이 매우 작더라도 큰 수익을 가져다 줄 수 있는 주식의 복권성향 정도를 수익률의 왜도, 고유위험, 주가의 크기를 사용하여 정의한 후, 이 복권성향 정도가 평가이익(손실) 상황에서 개인투자자의 매수(매도)비율과 유의한 연관성을 가지는지를 살펴봄으로써 복권성향 주식에 대한 개인투자자의 비이성적 투자행태 존재 여부를 살펴본다. 또한, 복권성향 주식을 중심으로, 자기과신이 개인투자자의 투자성과에 유의한 영향을 미치는지, 나아가 이러한 개인투자자의 투자행태가 주식시장의 정보환경과 어떤 관계를 가지는지도 살펴본다. 2000년부터 2017년까지 18년 기간 중 한국거래소에 상장된 기업을 대상으로 실증분석을 실시한 결과, 복권성향이 큰 종목일수록 투자자의 자기과신 현상이 두드러지며, 이러한 복권성향 주식과 자기과신 간의 관계는 개인투자자의 거래비중이 높아질수록 강해짐을 확인할 수 있었다. 뿐만 아니라, 복권성향 주식에 대한 개인투자자의 거래비중이 높아짐에 따라 정보거래 역시 심해짐을 발견함으로써 개인투자자의 비이성적 투자행태가 주식시장의 정보환경과도 밀접한 연관을 가짐을 확인할 수 있었다.
Abstract
Lottery-like stocks are stocks with very small probabilities of extremely large returns. Kumar(2009b) documents that investors display behavioral biases when they invest in lottery-like stocks. The extant literature reports various aspects of individual investors’ irrational behaviors such as overconfidence and excessive optimism. Based on the findings on lottery-like stocks and investors’ behavior, this research investigates whether the Lottery-like-stock Index(LIDX) is positively related to individual investors’ overconfidence. Further, we hypothesize that the investors’ irrational behavior in their investments in lottery-like stocks encourages informed traders to trade the stocks using their information, worsening stock market's information environment. To test this prediction, we examine whether investors’ lottery-like trading increases stock market’s adverse selection costs. Using the stock market data for firms listed on the Korea Exchange from 2000 to 2017, this research examines several empirical predictions regarding the effects of lottery-like stock trading on individual investors’ irrational behavior and stock market’s information asymmetry. Our results show that lottery-like stocks are positively related to overconfidence of individual investors and to stock illiquidity and adverse selection costs. Further, the positive relations between lottery-like stocks and investors’ irrational behavior as well as stock liquidity have been stronger in the sample stocks with more individual investor trading
참고문헌 (56)
- 강장구, "개인투자자의 투자심리와 주식수익률", 재무관리연구, 30(3), pp.35~68 (2013), 한국재무관리학회
- 강장구, "복권 성향의 주식에 대한 선호와 주식수익률의 횡단면", 재무연구, 27(2), pp.297~332 (2014), 한국재무학회
- 고광수, "투자 주체별 포트폴리오 특성과 성과 분석 :개인, 기관, 외국인", Asia-Pacific Journal of Financial Studies, 33(4), pp.35~62 (2004), 한국증권학회
- 고봉찬, "복권주식의 버블과 수익률 반전현상에 관한 연구", 재무관리연구, 34(3), pp.61~89 (2017), 한국재무관리학회[DOI]
- 길재욱, "개인투자자의 투자행태와 위험에 대한 인식에 관한 연구", Financial Planning Review, 1(1), pp.19~46 (2008)
- 김승탁, "총괄적 일별자료에서 기관투자자 세부유형별 Disposition Effect에 관한 실증분석", 금융지식연구, 12(3), pp.203~221 (2014), 금융지식연구소
- 문준철, "투자주체별 투자행태 및 투자성과에 관한 연구", 국제회계연구, (65), pp.155~178 (2016), 한국국제회계학회[DOI]
- 박태영, "복권 성향 선호와 ELW 수익률간의 관계", 한국경영과학회지, 43(3), pp.15~35 (2018), 한국경영과학회[DOI]
- 변영훈, "개인투자자의 주식투자 성과 분석", 재무관리연구, 22(2), pp.135~164 (2005), 한국재무관리학회
- 변진호, "개인 투자자의 과도거래와 투자성과", 경영학연구, 36(7), pp.1707~1730 (2007), 한국경영학회
- 심명화, "변동성, 왜도, 첨도와 주식수익률의 횡단면", 재무관리연구, 33(1), pp.71~102 (2016), 한국재무관리학회[DOI]
- 안희준, "기업고유 변동성과 체계적 변동성이 유동성에 미치는 효과", 재무연구, 30(1), pp.1~32 (2017), 한국재무학회[DOI]
- 정영우, "투자자별 순투자가 주식시장에 미치는 영향", 재무관리연구, 31(1), pp.105~143 (2014), 한국재무관리학회
- Ahn, H., "Which liquidity proxy measures liquidity best in emerging markets?", Economies, 6(4), pp.1~29 (2018)
- Amihud, Y., "Illiquidity and stock returns : Cross-section and time series effects", Journal of Financial Markets, 5, pp.31~56 (2002)
- Trading and under-diversification, "Anderson, A.", Institute for Financial Research, ~ (2008)
- Bali, T. G., "A lottery-demand-based explanation of the anomaly", Journal of Financial and Quantitative Analysis, 52(6), pp.2369~2397 (2017)
- Barber, B. M., "Trading is hazardous to your wealth : The common stock investment performance of individual investors", The Journal of Finance, 55, pp.773~806 (2000)
- Barber, B. M., "Just how much do individual investors lose by trading?", Review of Financial Studies, 22, pp.609~632 (2009)
- Barberis, N., "Stocks as lotteris : The impliactions of probabiility weighting for security prices", American Economic Review, 98(5), pp.2066~2100 (2008)
- Boyer, B., "Expected Idiosyncratic Skewness", The Review of Financial Studies, 23(1), pp.169~202 (2010)
- Chan, K., "Stock price synchronicity and liquidity", Journal of Financial Markets, 16, pp.414~438 (2013)
- Daniel, K., "Investor Psychology and Security Market Under? and Overreactions", The Journal of Finance, 53(6), pp.1839~1885 (1998)
- Conrad, J., "Death and jackpot : Why do individual investors hold overpriced stocks?", Journal of Financial Economics, 113, pp.455~475 (2014)
- Daniel, K., "Overconfident Investors, Predictable Returns, and Excessive Trading", Journal of Economic Perspectives, 29(4), pp.61~88 (2015)
- DeBondt, W., "Finance Handbooks on Operations Research and Management Science", pp.385~410 (1995)
- Dorn, A. J,, "Trading as gambling: Evidence from the U.S", Management Science, 61(10), pp.2376~2393 (2015)
- Easley, D., "Liquidity, Information, and Infrequently Traded Stocks", The Journal of Finance, 51, pp.1405~1436 (1996)
- Eraker, B., "Do investors overpay for stocks with lottery-like payoffs? An examination of the returns of OTC stocks", Journal of Financial Economics, 115(3), pp.486~504 (2015)
- Fong, W. M., "Risk preferences, investor sentiment and lottery stocks : A stochastic dominance approach", Journal of Behavioral Finance, 14, pp.42~52 (2013)
- Friedman, M., "The utility analysis of choices involving risk", Journal of Political Economy, 56, pp.279~304 (1948)
- Gao, X., "Do individual investors trade stocks as gambling? Evidence from repeated natural experiments", Review of Financial Studies, 28(7), pp.2128~2166 (2015)
- Gervais, S., "Learning to be overconfident", The Review of Financial Studies, 14(1), pp.1~27 (2001)
- Glosten, L., "Estimating the components of the bid", ask spread, 1988, pp.21, 123~142
- Goyenko, R. Y., "Do liquidity measures measure liquidity?", Journal of Financial Economics, 92, pp.153~181 (2009)
- Greenwald, A., "The Totalitarian Ego : Fabrication and Revision of Personal History", American Psychologist, 35, pp.603~618 (1980)
- Griffin, D., "The Weighing of Evidence and the Determinants of Confidence", Cognitive Psychology, 24(3), pp.411~435 (1992)
- Grinblatt, M., "What makes investors trade?", Journal of Finance, 56, pp.589~616 (2001)
- Hirshleifer, D., "Investor Psychology and Asset Pricing", The Journal of Finance, 56(4), pp.1533~1597 (2001)
- Kyle, A. S., "Continuous auction and insider Trading", Econometrica, 53, pp.1315~1336 (1985)
- Kumar, A., "Who gambles in the stock market?", The Journal of Finance, 64(4), pp.1889~1933 (2009)
- Kumar, A., "Hard-to-value stocks, behavioral biases, and informed trading", Journal of Financial and Quantitative Analysis, 44(6), pp.1357~1401 (2009)
- Kumar, A., "Gambling and Comovement", Journal of Financial and Quantitative Analysis, 51(1), pp.85~111 (2016)
- Kunda, Z., "Motivated Inference : Self-serving Generation and Evaluation of Causal Theories", Journal of Personality and Social Psychology, 53, pp.636~647 (1987)
- Langer, E., "Heads I Win, Tails It's Chance : The Illusion of Control as a Function of the Sequence of Outcomes in a Purely Chance Task", Journal of Personality and Social Psychology, 32, pp.951~955 (1975)
- Lesmond, D. A., "Liquidity of emerging markets", Journal of Financial Economics, 77, pp.411~452 (2005)
- Markowitz, H., "The utility of wealth", Journal of Political Economy, 60, pp.151~158 (1952)
- Mitton, T., "Equilibrium Underdiversification and the Preference for Skewness", The Review of Financial Studies, 20(4), pp.1255~1288 (2007)
- Odean, T., "Are investors reluctant to realize their losses?", The Journal of Finance, 53, pp.1775~1798 (1998)
- Odean, T., "Do investors trade too much?", American Economic Review, 89, pp.1279~1298 (1999)
- Petersen, M. A., "Estimating standard errors in finance panel data sets : Comparing Approaches", The Review of Financial Studies, 22, pp.435~480 (2009)
- Roll, R., "A simple implicit measure of the effective bid-ask spread in an efficient market", The Journal of Finance, 39, pp.1127~1139 (1984)
- Shiller, R. J., "Market Volatility" (1989), MIT Press
- Shiller, R. J., "Irrational Excuberance" (2000), Princeton University Press
- Taylor, S., "Illusion and Wellbeing : A Social Psychological Perspective on Mental Health", Psychological Bulletin, 103, pp.193~210 (1988)
- Weinstein, N., "Unrealistic Optimism About Future Life Events", Journal of Personality and Social Psychology, 39, pp.806~820 (1980)
