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Asset pricing in large information networks

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  • Ozsoylev, Han N.
  • Walden, Johan

Abstract

We study asset pricing in economies with large information networks. We focus on networks that are sparse and have power law degree distributions, in line with empirical studies of large scale social networks. Our theoretical framework yields a rich set of novel asset pricing implications. We derive closed form expressions for price, volatility, profitability and trading volume, as functions of the network topology. We also study agent welfare and show that the network that optimizes total welfare is typically a uniform one with an intermediate degree of connectedness.

Suggested Citation

  • Ozsoylev, Han N. & Walden, Johan, 2011. "Asset pricing in large information networks," Journal of Economic Theory, Elsevier, vol. 146(6), pages 2252-2280.
  • Handle: RePEc:eee:jetheo:v:146:y:2011:i:6:p:2252-2280
    DOI: 10.1016/j.jet.2011.10.003
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    Cited by:

    1. Grullon, Gustavo & Underwood, Shane & Weston, James P., 2014. "Comovement and investment banking networks," Journal of Financial Economics, Elsevier, vol. 113(1), pages 73-89.
    2. Itay P. Fainmesser, 2012. "Community Structure and Market Outcomes: A Repeated Games-in-Networks Approach," American Economic Journal: Microeconomics, American Economic Association, vol. 4(1), pages 32-69, February.
    3. Halim, Edward & Riyanto, Yohanes Eko & Roy, Nilanjan, 2017. "Costly Information Acquisition, Social Networks and Asset Prices: Experimental Evidence," MPRA Paper 80658, University Library of Munich, Germany.
    4. Goyal, S., 2016. "Networks and Markets," Cambridge Working Papers in Economics 1652, Faculty of Economics, University of Cambridge.
    5. Michael Haliassos & Hector F. CALVO PARDO & Chryssi Giannitsarou & Luc Arrondel, 2016. "Informative Social Interactions," 2016 Meeting Papers 636, Society for Economic Dynamics.
    6. Chuang, Hongwei, 2015. "Volatility persistence in stock market," Economics Letters, Elsevier, vol. 133(C), pages 64-67.
    7. Ana Babus, 2011. "Strategic Relationships in Over-the-Counter Markets," 2011 Meeting Papers 1405, Society for Economic Dynamics.
    8. Cathline Augustiani & Lorenzo Casavecchia & Jack Gray, 2015. "Managerial Sharing, Mutual Fund Connections, and Performance," International Review of Finance, International Review of Finance Ltd., vol. 15(3), pages 427-455, September.
    9. Tang, Ya, 2014. "Information disclosure and price discovery," Journal of Financial Markets, Elsevier, vol. 19(C), pages 39-61.
    10. Yuri Biondi & Simone Righi, 2016. "What does the financial market pricing do? A simulation analysis with a view to systemic volatility, exuberance and vagary," Journal of Economic Interaction and Coordination, Springer;Society for Economic Science with Heterogeneous Interacting Agents, vol. 11(2), pages 175-203, October.
    11. Caterina Liberati & Massimiliano Marzo & Paolo Zagaglia & Paola Zappa, 2012. "Structural Distortions in the Euro Interbank Market: The Role of 'Key Players' during the Recent Market Turmoil," Working Paper series 57_12, Rimini Centre for Economic Analysis.
    12. Dakshina Garfield De Silva & Marina Gertsberg & Georgia Kosmopoulou & Rachel Pownall, 2017. "Dealer Networks in the World of Art," Working Papers 198144199, Lancaster University Management School, Economics Department.
    13. Babus, Ana & Hu, Tai-Wei, 2017. "Endogenous intermediation in over-the-counter markets," Journal of Financial Economics, Elsevier, vol. 125(1), pages 200-215.
    14. Sanjeev Goyal, 2015. "Networks in Economics: A Perspective on the Literature," Cambridge Working Papers in Economics 1548, Faculty of Economics, University of Cambridge.
    15. Liyan Yang & Itay Goldstein, 2014. "Market Efficiency and Real Efficiency: The Connect and Disconnect via Feedback Effects," 2014 Meeting Papers 154, Society for Economic Dynamics.
    16. Caterina Liberati & Massimiliano Marzo & Paolo Zagaglia & Paola Zappa, 2015. "Drivers of demand and supply in the Euro interbank market: the role of “Key Players” during the recent turmoil," Financial Markets and Portfolio Management, Springer;Swiss Society for Financial Market Research, vol. 29(3), pages 207-250, August.
    17. Garcia, Daniel, 2012. "Communication and Information Acquisition in Networks," MPRA Paper 55481, University Library of Munich, Germany, revised 24 Apr 2014.
    18. Manela, Asaf, 2014. "The value of diffusing information," Journal of Financial Economics, Elsevier, vol. 111(1), pages 181-199.
    19. repec:eee:jfinec:v:125:y:2017:i:1:p:26-47 is not listed on IDEAS

    More about this item

    Keywords

    Information networks; Noisy rational expectations equilibrium; Power law;

    JEL classification:

    • 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
    • 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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