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Dynamic interventions and informational linkages

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  • Cong, Lin William
  • Grenadier, Steven R.
  • Hu, Yunzhi

Abstract

We model a dynamic economy with strategic complementarity among investors and study how endogenous government interventions mitigate coordination failures. We establish equilibrium existence and uniqueness, and we show that one intervention can affect another through altering the public information structure. A stronger initial intervention helps subsequent interventions through increasing the likelihood of positive news, but also leads to negative conditional updates. Our results suggest optimal policy should emphasize initial interventions when coordination outcomes tend to correlate. Neglecting informational externalities of initial interventions results in over- or under-interventions. Moreover, saving smaller funds disproportionally more can generate greater informational benefits at smaller costs.

Suggested Citation

  • Cong, Lin William & Grenadier, Steven R. & Hu, Yunzhi, 2020. "Dynamic interventions and informational linkages," Journal of Financial Economics, Elsevier, vol. 135(1), pages 1-15.
  • Handle: RePEc:eee:jfinec:v:135:y:2020:i:1:p:1-15
    DOI: 10.1016/j.jfineco.2019.05.011
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    3. Zhao Li & Kebin Ma, 2022. "Contagious Bank Runs and Committed Liquidity Support," Management Science, INFORMS, vol. 68(12), pages 9152-9174, December.
    4. Guo, Qi & Huang, Shao'an & Wang, Gaowang, 2024. "Stabilizing the Financial Markets through Communication and Informed Trading," MPRA Paper 120072, University Library of Munich, Germany.
    5. Guo, Qi & Huang, Shao'an & Wang, Gaowang, 2022. "Stabilizing the Financial Markets through Informed Trading," MPRA Paper 115470, University Library of Munich, Germany.

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    More about this item

    Keywords

    Coordination failures; Government intervention; Information design; Financial crisis; Global games; Learning;
    All these keywords.

    JEL classification:

    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • G01 - Financial Economics - - General - - - Financial Crises
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation

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