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Wisdom of crowds or awkward squad? Social interaction and the information efficiency of the Chinese capital market

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  • Wu, Yanran
  • Wu, Shan
  • Xu, Fujia
  • Jiang, Jie

Abstract

Existing studies on the impact of social media on the information efficiency of capital markets have opposing views. One often-overlooked aspect in these studies is the role of investor interaction, a core feature of social media. To address this gap, we employ social network analysis (SNA) to investigate how investor interactions on Eastmoney, China's largest online stock forum, influence capital market efficiency. Our findings indicate that online investor communication can effectively disseminate firm-specific information through social networks when investor interactions are at a moderate level. However, beyond a certain threshold, heightened interactions contribute to market noise, thereby distorting the stock price discovery process. Our mechanistic analysis reveals that increased investor interactions stimulate irrational emotions at both market and stock levels, ultimately impairing capital market efficiency. This study contributes to social network analysis and behavioral finance by illuminating the impact of online social interactions among retail investors on capital market information efficiency.

Suggested Citation

  • Wu, Yanran & Wu, Shan & Xu, Fujia & Jiang, Jie, 2024. "Wisdom of crowds or awkward squad? Social interaction and the information efficiency of the Chinese capital market," Research in International Business and Finance, Elsevier, vol. 71(C).
    • Handle: RePEc:eee:riibaf:v:71:y:2024:i:c:s0275531924002794
    DOI: 10.1016/j.ribaf.2024.102486
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    as
    1. Jin, Li & Myers, Stewart C., 2006. "R2 around the world: New theory and new tests," Journal of Financial Economics, Elsevier, vol. 79(2), pages 257-292, February.
    2. Baker, Malcolm & Stein, Jeremy C., 2004. "Market liquidity as a sentiment indicator," Journal of Financial Markets, Elsevier, vol. 7(3), pages 271-299, June.
    3. Tversky, Amos & Kahneman, Daniel, 1992. "Advances in Prospect Theory: Cumulative Representation of Uncertainty," Journal of Risk and Uncertainty, Springer, vol. 5(4), pages 297-323, October.
    4. Gu, Chen & Kurov, Alexander, 2020. "Informational role of social media: Evidence from Twitter sentiment," Journal of Banking & Finance, Elsevier, vol. 121(C).
    5. Michael S. Drake & Jacob R. Thornock & Brady J. Twedt, 2017. "The internet as an information intermediary," Review of Accounting Studies, Springer, vol. 22(2), pages 543-576, June.
    6. Pedersen, Lasse Heje, 2022. "Game on: Social networks and markets," Journal of Financial Economics, Elsevier, vol. 146(3), pages 1097-1119.
    7. Stambaugh, Robert F. & Yu, Jianfeng & Yuan, Yu, 2012. "The short of it: Investor sentiment and anomalies," Journal of Financial Economics, Elsevier, vol. 104(2), pages 288-302.
    8. Chan, Kalok & Hameed, Allaudeen, 2006. "Stock price synchronicity and analyst coverage in emerging markets," Journal of Financial Economics, Elsevier, vol. 80(1), pages 115-147, April.
    9. Paige Ouimet & Geoffrey Tate, 2020. "Learning from Coworkers: Peer Effects on Individual Investment Decisions," Journal of Finance, American Finance Association, vol. 75(1), pages 133-172, February.
    10. Emilio Ferrara & Zeyao Yang, 2015. "Measuring Emotional Contagion in Social Media," PLOS ONE, Public Library of Science, vol. 10(11), pages 1-14, November.
    11. Gregory W. Brown & Michael T. Cliff, 2005. "Investor Sentiment and Asset Valuation," The Journal of Business, University of Chicago Press, vol. 78(2), pages 405-440, March.
    12. Jia, Weishi & Redigolo, Giulia & Shu, Susan & Zhao, Jingran, 2020. "Can social media distort price discovery? Evidence from merger rumors," Journal of Accounting and Economics, Elsevier, vol. 70(1).
    13. Li, Shan & Brockman, Paul & Zurbruegg, Ralf, 2015. "Cross-listing, firm-specific information, and corporate governance: Evidence from Chinese A-shares and H-shares," Journal of Corporate Finance, Elsevier, vol. 32(C), pages 347-362.
    14. Han, Bing & Hirshleifer, David & Walden, Johan, 2022. "Social Transmission Bias and Investor Behavior," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 57(1), pages 390-412, February.
    15. Gul, Ferdinand A. & Kim, Jeong-Bon & Qiu, Annie A., 2010. "Ownership concentration, foreign shareholding, audit quality, and stock price synchronicity: Evidence from China," Journal of Financial Economics, Elsevier, vol. 95(3), pages 425-442, March.
    16. Clement, Michael B. & Koonce, Lisa & Lopez, Thomas J., 2007. "The roles of task-specific forecasting experience and innate ability in understanding analyst forecasting performance," Journal of Accounting and Economics, Elsevier, vol. 44(3), pages 378-398, December.
    17. Cao, Xing & Zhang, Yongjie & Feng, Xu & Meng, Xiangtong, 2021. "Investor interaction and price efficiency: Evidence from social media," Finance Research Letters, Elsevier, vol. 40(C).
    18. Li, Wei & Wang, Steven Shuye, 2010. "Daily institutional trades and stock price volatility in a retail investor dominated emerging market," Journal of Financial Markets, Elsevier, vol. 13(4), pages 448-474, November.
    19. Mola, Simona & Guidolin, Massimo, 2009. "Affiliated mutual funds and analyst optimism," Journal of Financial Economics, Elsevier, vol. 93(1), pages 108-137, July.
    20. Boubaker, Sabri & Mansali, Hatem & Rjiba, Hatem, 2014. "Large controlling shareholders and stock price synchronicity," Journal of Banking & Finance, Elsevier, vol. 40(C), pages 80-96.
    21. André Betzer & Jan Philipp Harries, 2022. "How online discussion board activity affects stock trading: the case of GameStop," Financial Markets and Portfolio Management, Springer;Swiss Society for Financial Market Research, vol. 36(4), pages 443-472, December.
    22. Hoque, Ariful & Le, Thi & Hasan, Morshadul & Abedin, Mohammad Zoynul, 2024. "Does market efficiency matter for Shanghai 50 ETF index options?," Research in International Business and Finance, Elsevier, vol. 67(PB).
    23. Li, Tong & Chen, Hui & Liu, Wei & Yu, Guang & Yu, Yongtian, 2023. "Understanding the role of social media sentiment in identifying irrational herding behavior in the stock market," International Review of Economics & Finance, Elsevier, vol. 87(C), pages 163-179.
    24. Qiang Cheng & Fei Du & Xin Wang & Yutao Wang, 2016. "Seeing is believing: analysts’ corporate site visits," Review of Accounting Studies, Springer, vol. 21(4), pages 1245-1286, December.
    25. Umar, Zaghum & Gubareva, Mariya & Yousaf, Imran & Ali, Shoaib, 2021. "A tale of company fundamentals vs sentiment driven pricing: The case of GameStop," Journal of Behavioral and Experimental Finance, Elsevier, vol. 30(C).
    26. Qi Chen & Itay Goldstein & Wei Jiang, 2007. "Price Informativeness and Investment Sensitivity to Stock Price," The Review of Financial Studies, Society for Financial Studies, vol. 20(3), pages 619-650.
    27. Robert J. Shiller, 2017. "Narrative Economics," American Economic Review, American Economic Association, vol. 107(4), pages 967-1004, April.
    28. Behrendt, Simon & Schmidt, Alexander, 2018. "The Twitter myth revisited: Intraday investor sentiment, Twitter activity and individual-level stock return volatility," Journal of Banking & Finance, Elsevier, vol. 96(C), pages 355-367.
    29. Hu, Zhongchen, 2022. "Social interactions and households’ flood insurance decisions," Journal of Financial Economics, Elsevier, vol. 144(2), pages 414-432.
    30. Rawley Z. Heimer, 2016. "Peer Pressure: Social Interaction and the Disposition Effect," The Review of Financial Studies, Society for Financial Studies, vol. 29(11), pages 3177-3209.
    31. Gregory S. Miller & Douglas J. Skinner, 2015. "The Evolving Disclosure Landscape: How Changes in Technology, the Media, and Capital Markets Are Affecting Disclosure," Journal of Accounting Research, Wiley Blackwell, vol. 53(2), pages 221-239, May.
    32. Artyom Durnev & Randall Morck & Bernard Yeung & Paul Zarowin, 2003. "Does Greater Firm‐Specific Return Variation Mean More or Less Informed Stock Pricing?," Journal of Accounting Research, Wiley Blackwell, vol. 41(5), pages 797-836, December.
    33. Bossman, Ahmed & Gubareva, Mariya & Teplova, Tamara, 2023. "EU sectoral stocks amid geopolitical risk, market sentiment, and crude oil implied volatility: An asymmetric analysis of the Russia-Ukraine tensions," Resources Policy, Elsevier, vol. 82(C).
    34. Umar, Zaghum & Adekoya, Oluwasegun Babatunde & Oliyide, Johnson Ayobami & Gubareva, Mariya, 2021. "Media sentiment and short stocks performance during a systemic crisis," International Review of Financial Analysis, Elsevier, vol. 78(C).
    35. Farrell, Michael & Green, T. Clifton & Jame, Russell & Markov, Stanimir, 2022. "The democratization of investment research and the informativeness of retail investor trading," Journal of Financial Economics, Elsevier, vol. 145(2), pages 616-641.
    36. Bukovina, Jaroslav, 2016. "Social media big data and capital markets—An overview," Journal of Behavioral and Experimental Finance, Elsevier, vol. 11(C), pages 18-26.
    37. Aloosh, Arash & Choi, Hyung-Eun & Ouzan, Samuel, 2023. "The tail wagging the dog: How do meme stocks affect market efficiency?," International Review of Economics & Finance, Elsevier, vol. 87(C), pages 68-78.
    38. Can Huang & Yuqiang Cao & Meiting Lu & Yaowen Shan & Yizhou Zhang, 2023. "Messages in online stock forums and stock price synchronicity: Evidence from China," Accounting and Finance, Accounting and Finance Association of Australia and New Zealand, vol. 63(3), pages 3011-3041, September.
    39. Alzayed, Noora & Batiz-Lazo, Bernardo & Eskandari, Rasol, 2024. "Does board diversity mitigate risk? The effect of homophily and social ties on risk-taking in financial institutions," Research in International Business and Finance, Elsevier, vol. 70(PA).
    40. repec:bla:jfinan:v:59:y:2004:i:1:p:137-163 is not listed on IDEAS
    41. Gong, Xiao-Li & Liu, Jia, 2023. "Institutional investor information network, analyst forecasting and stock price crash risk," Research in International Business and Finance, Elsevier, vol. 65(C).
    42. Michael Firth & Kailong (Philip) Wang & Sonia ML Wong, 2015. "Corporate Transparency and the Impact of Investor Sentiment on Stock Prices," Management Science, INFORMS, vol. 61(7), pages 1630-1647, July.
    43. Manuel Ammann & Nic Schaub, 2021. "Do Individual Investors Trade on Investment-Related Internet Postings?," Management Science, INFORMS, vol. 67(9), pages 5679-5702, September.
    44. Paul C. Tetlock, 2007. "Giving Content to Investor Sentiment: The Role of Media in the Stock Market," Journal of Finance, American Finance Association, vol. 62(3), pages 1139-1168, June.
    45. repec:bla:jfinan:v:59:y:2004:i:3:p:1259-1294 is not listed on IDEAS
    46. Eierle, Brigitte & Klamer, Sebastian & Muck, Matthias, 2022. "Does it really pay off for investors to consider information from social media?," International Review of Financial Analysis, Elsevier, vol. 81(C).
    47. Hailiang Chen & Prabuddha De & Yu (Jeffrey) Hu & Byoung-Hyoun Hwang, 2014. "Wisdom of Crowds: The Value of Stock Opinions Transmitted Through Social Media," The Review of Financial Studies, Society for Financial Studies, vol. 27(5), pages 1367-1403.
    48. An, Heng & Zhang, Ting, 2013. "Stock price synchronicity, crash risk, and institutional investors," Journal of Corporate Finance, Elsevier, vol. 21(C), pages 1-15.
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    More about this item

    Keywords

    social network analysis; social interaction; investor sentiment; stock price synchronicity;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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