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Bank Mergers, Competition, and Liquidity

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  • ELENA CARLETTI
  • PHILIPP HARTMANN
  • GIANCARLO SPAGNOLO

Abstract

We model the impact of bank mergers on loan competition, reserve holdings, and aggregate liquidity. A merger changes the distribution of liquidity shocks and creates an internal money market, leading to financial cost efficiencies and more precise estimates of liquidity needs. The merged banks may increase their reserve holdings through an internalization effect or decrease them because of a diversification effect. The merger also affects loan market competition, which in turn modifies the distribution of bank sizes and aggregate liquidity needs. Mergers among large banks tend to increase aggregate liquidity needs and thus the public provision of liquidity through monetary operations of the central bank.

Suggested Citation

  • Elena Carletti & Philipp Hartmann & Giancarlo Spagnolo, 2007. "Bank Mergers, Competition, and Liquidity," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 39(5), pages 1067-1105, August.
    • Handle: RePEc:wly:jmoncb:v:39:y:2007:i:5:p:1067-1105
    DOI: 10.1111/j.1538-4616.2007.00058.x
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    More about this item

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

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