IDEAS home Printed from https://ideas.repec.org/a/eee/dyncon/v150y2023ics0165188923000490.html
   My bibliography  Save this article

Information linkages in a financial market with imperfect competition

Author

Listed:
  • Lou, Youcheng
  • Yang, Yaqing

Abstract

This study proposes a tractable imperfectly competitive economy where traders are socially connected with each other via an information network. We investigate the impact of information linkages on market equilibrium outcomes. In the linear-quadratic-normal framework, we first establish the existence and uniqueness of symmetric linear Bayesian Nash equilibrium. We then show that an increase of the level of information linkages decreases price impact, belief disagreement, return volatility and trading volume. Additionally, unlike the non-monotonicity results in large economies, we also show that increasing the level of information linkages always improves liquidity, increases price volatility, and decreases trading profits in our imperfectly competitive economy.

Suggested Citation

  • Lou, Youcheng & Yang, Yaqing, 2023. "Information linkages in a financial market with imperfect competition," Journal of Economic Dynamics and Control, Elsevier, vol. 150(C).
    • Handle: RePEc:eee:dyncon:v:150:y:2023:i:c:s0165188923000490
    DOI: 10.1016/j.jedc.2023.104643
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0165188923000490
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.jedc.2023.104643?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Xavier Vives, 2017. "Endogenous Public Information and Welfare in Market Games," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 84(2), pages 935-963.
    2. Shalen, Catherine T, 1993. "Volume, Volatility, and the Dispersion of Beliefs," Review of Financial Studies, Society for Financial Studies, vol. 6(2), pages 405-434.
    3. Xavier Vives, 2011. "Strategic Supply Function Competition With Private Information," Econometrica, Econometric Society, vol. 79(6), pages 1919-1966, November.
    4. Lauren Cohen & Andrea Frazzini & Christopher Malloy, 2008. "The Small World of Investing: Board Connections and Mutual Fund Returns," Journal of Political Economy, University of Chicago Press, vol. 116(5), pages 951-979, October.
    5. Zoran Ivkovi & Scott Weisbenner, 2007. "Information Diffusion Effects in Individual Investors' Common Stock Purchases: Covet Thy Neighbors' Investment Choices," The Review of Financial Studies, Society for Financial Studies, vol. 20(4), pages 1327-1357.
    6. Lou, Youcheng & Parsa, Sahar & Ray, Debraj & Li, Duan & Wang, Shouyang, 2019. "Information aggregation in a financial market with general signal structure," Journal of Economic Theory, Elsevier, vol. 183(C), pages 594-624.
    7. Paolo Colla & Antonio Mele, 2010. "Information Linkages and Correlated Trading," Review of Financial Studies, Society for Financial Studies, vol. 23(1), pages 203-246, January.
    8. Grossman, Sanford J & Stiglitz, Joseph E, 1980. "On the Impossibility of Informationally Efficient Markets," American Economic Review, American Economic Association, vol. 70(3), pages 393-408, June.
    9. Manzano, Carolina & Vives, Xavier, 2021. "Market power and welfare in asymmetric divisible good auctions," Theoretical Economics, Econometric Society, vol. 16(3), July.
    10. Ozsoylev, Han N. & Walden, Johan, 2011. "Asset pricing in large information networks," Journal of Economic Theory, Elsevier, vol. 146(6), pages 2252-2280.
    11. Karpoff, Jonathan M., 1987. "The Relation between Price Changes and Trading Volume: A Survey," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 22(1), pages 109-126, March.
    12. Kaustia, Markku & Knüpfer, Samuli, 2012. "Peer performance and stock market entry," Journal of Financial Economics, Elsevier, vol. 104(2), pages 321-338.
    13. Hellwig, Martin F., 1980. "On the aggregation of information in competitive markets," Journal of Economic Theory, Elsevier, vol. 22(3), pages 477-498, June.
    14. Snehal Banerjee & Ilan Kremer, 2010. "Disagreement and Learning: Dynamic Patterns of Trade," Journal of Finance, American Finance Association, vol. 65(4), pages 1269-1302, August.
    15. Edward Halim & Yohanes E. Riyanto & Nilanjan Roy, 2019. "Costly Information Acquisition, Social Networks, and Asset Prices: Experimental Evidence," Journal of Finance, American Finance Association, vol. 74(4), pages 1975-2010, August.
    16. Pound, John & Zeckhauser, Richard J, 1990. "Clearly Heard on the Street: The Effect of Takeover Rumors on Stock Prices," The Journal of Business, University of Chicago Press, vol. 63(3), pages 291-308, July.
    17. Han N. Ozsoylev & Johan Walden & M. Deniz Yavuz & Recep Bildik, 2014. "Investor Networks in the Stock Market," Review of Financial Studies, Society for Financial Studies, vol. 27(5), pages 1323-1366.
    18. Veronika K. Pool & Noah Stoffman & Scott E. Yonker, 2015. "The People in Your Neighborhood: Social Interactions and Mutual Fund Portfolios," Journal of Finance, American Finance Association, vol. 70(6), pages 2679-2732, December.
    19. Rostek, Marzena & Weretka, Marek, 2015. "Information and strategic behavior," Journal of Economic Theory, Elsevier, vol. 158(PB), pages 536-557.
    20. Marzena Rostek & Marek Weretka, 2012. "Price Inference in Small Markets," Econometrica, Econometric Society, vol. 80(2), pages 687-711, March.
    21. Hirshleifer, Jack, 1971. "The Private and Social Value of Information and the Reward to Inventive Activity," American Economic Review, American Economic Association, vol. 61(4), pages 561-574, September.
    22. Albert S. Kyle, 1989. "Informed Speculation with Imperfect Competition," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 56(3), pages 317-355.
    23. Harrison Hong & Jeffrey D. Kubik & Jeremy C. Stein, 2005. "Thy Neighbor's Portfolio: Word‐of‐Mouth Effects in the Holdings and Trades of Money Managers," Journal of Finance, American Finance Association, vol. 60(6), pages 2801-2824, December.
    24. Bing Han & Liyan Yang, 2013. "Social Networks, Information Acquisition, and Asset Prices," Management Science, INFORMS, vol. 59(6), pages 1444-1457, June.
    25. Harald Hau, 2001. "Location Matters: An Examination of Trading Profits," Journal of Finance, American Finance Association, vol. 56(5), pages 1959-1983, October.
    26. Johan Walden, 2019. "Trading, Profits, and Volatility in a Dynamic Information Network Model," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 86(5), pages 2248-2283.
    27. Albert Wang, F., 1998. "Strategic trading, asymmetric information and heterogeneous prior beliefs," Journal of Financial Markets, Elsevier, vol. 1(3-4), pages 321-352, September.
    28. Harrison Hong & Jeremy C. Stein, 2007. "Disagreement and the Stock Market," Journal of Economic Perspectives, American Economic Association, vol. 21(2), pages 109-128, Spring.
    29. Verrecchia, Robert E, 1982. "Information Acquisition in a Noisy Rational Expectations Economy," Econometrica, Econometric Society, vol. 50(6), pages 1415-1430, November.
    30. Kenneth R. Ahern & Denis Sosyura, 2015. "Rumor Has It: Sensationalism in Financial Media," Review of Financial Studies, Society for Financial Studies, vol. 28(7), pages 2050-2093.
    31. Albert S Kyle & Anna A Obizhaeva & Yajun Wang, 2018. "Smooth Trading with Overconfidence and Market Power," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 85(1), pages 611-662.
    32. Lei Feng & Mark S. Seasholes, 2004. "Correlated Trading and Location," Journal of Finance, American Finance Association, vol. 59(5), pages 2117-2144, October.
    33. Jeffrey R. Brown & Zoran Ivković & Paul A. Smith & Scott Weisbenner, 2008. "Neighbors Matter: Causal Community Effects and Stock Market Participation," Journal of Finance, American Finance Association, vol. 63(3), pages 1509-1531, June.
    34. Lou, Youcheng & Rahi, Rohit, 2021. "Information, market power and welfare," LSE Research Online Documents on Economics 118843, London School of Economics and Political Science, LSE Library.
    35. Manela, Asaf, 2014. "The value of diffusing information," Journal of Financial Economics, Elsevier, vol. 111(1), pages 181-199.
    36. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-1335, November.
    37. Crawford, Steven S. & Gray, Wesley R. & Kern, Andrew E., 2017. "Why Do Fund Managers Identify and Share Profitable Ideas?," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 52(5), pages 1903-1926, October.
    38. Shiller, 021Robert J. & Pound, John, 1989. "Survey evidence on diffusion of interest and information among investors," Journal of Economic Behavior & Organization, Elsevier, vol. 12(1), pages 47-66, August.
    39. 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.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Lou, Youcheng & Wang, Shouyang, 2021. "The equivalence of two rational expectations equilibrium economies with different approaches to processing neighbors’ information," Mathematical Social Sciences, Elsevier, vol. 109(C), pages 93-105.
    2. Huan Liu & Weiqi Liu & Yi Li, 2022. "Private Information Dissemination and Noise Trading: Implications for Price Efficiency and Market Liquidity," Sustainability, MDPI, vol. 14(18), pages 1-19, September.
    3. Bing Han & Liyan Yang, 2013. "Social Networks, Information Acquisition, and Asset Prices," Management Science, INFORMS, vol. 59(6), pages 1444-1457, June.
    4. Lou, Youcheng & Parsa, Sahar & Ray, Debraj & Li, Duan & Wang, Shouyang, 2019. "Information aggregation in a financial market with general signal structure," Journal of Economic Theory, Elsevier, vol. 183(C), pages 594-624.
    5. Pedersen, Lasse Heje, 2022. "Game on: Social networks and markets," Journal of Financial Economics, Elsevier, vol. 146(3), pages 1097-1119.
    6. Ganglmair, Bernhard & Holcomb, Alex & Myung, Noah, 2020. "Expectations of reciprocity when competitors share information: Experimental evidence," Journal of Economic Behavior & Organization, Elsevier, vol. 170(C), pages 244-267.
    7. Edward Halim & Yohanes E. Riyanto & Nilanjan Roy, 2019. "Costly Information Acquisition, Social Networks, and Asset Prices: Experimental Evidence," Journal of Finance, American Finance Association, vol. 74(4), pages 1975-2010, August.
    8. Luo, Ronghua & Zhao, Senyang & Zhou, Jing, 2023. "Information network, public disclosure and asset prices," Pacific-Basin Finance Journal, Elsevier, vol. 77(C).
    9. Ding, Jing & Fang, Libing & Chen, Shi, 2020. "Mitigating free riding in social networks: The impact of underestimating others’ ability in financial market," International Review of Economics & Finance, Elsevier, vol. 70(C), pages 582-599.
    10. Lou, Youcheng & Rahi, Rohit, 2021. "Information, market power and welfare," LSE Research Online Documents on Economics 118843, London School of Economics and Political Science, LSE Library.
    11. Glebkin, Sergei & Kuong, John Chi-Fong, 2023. "When large traders create noise," Journal of Financial Economics, Elsevier, vol. 150(2).
    12. Michael Bailey & Ruiqing Cao & Theresa Kuchler & Johannes Stroebel, 2016. "Social Networks and Housing Markets," NBER Working Papers 22258, National Bureau of Economic Research, Inc.
    13. Rahi, Rohit, 2021. "Information acquisition with heterogeneous valuations," Journal of Economic Theory, Elsevier, vol. 191(C).
    14. Lou, Youcheng & Rahi, Rohit, 2023. "Information, market power and welfare," LSE Research Online Documents on Economics 120479, London School of Economics and Political Science, LSE Library.
    15. Blankespoor, Elizabeth & deHaan, Ed & Marinovic, Iván, 2020. "Disclosure processing costs, investors’ information choice, and equity market outcomes: A review," Journal of Accounting and Economics, Elsevier, vol. 70(2).
    16. Cujean, Julien, 2020. "Idea sharing and the performance of mutual funds," Journal of Financial Economics, Elsevier, vol. 135(1), pages 88-119.
    17. Hirshleifer, David & Lo, Andrew W. & Zhang, Ruixun, 2023. "Social contagion and the survival of diverse investment styles," Journal of Economic Dynamics and Control, Elsevier, vol. 154(C).
    18. Rawley Heimer & David Simon, 2015. "Facebook Finance: How Social Interaction Propagates Active Investing," Working Papers (Old Series) 1522, Federal Reserve Bank of Cleveland.
    19. Ahern, Kenneth R., 2017. "Information networks: Evidence from illegal insider trading tips," Journal of Financial Economics, Elsevier, vol. 125(1), pages 26-47.
    20. Cujean, Julien, 2018. "Idea Sharing and the Performance of Mutual Funds," CEPR Discussion Papers 13111, C.E.P.R. Discussion Papers.

    More about this item

    Keywords

    Information linkages; Imperfect competition; Market Equilibrium Outcomes;
    All these keywords.

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:dyncon:v:150:y:2023:i:c:s0165188923000490. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/locate/jedc .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.