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A Macroeconomic Theory of Banking Oligopoly

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  • Dong, Mei
  • Huangfu, Stella
  • Sun, Hongfei

Abstract

We study the behavior and macroeconomic impact of oligopolistic banks in a tractable environment with micro-foundations for money and banking. Our model features oligopolistic banks, which resembles the structure of the banking sector observed in most advanced economies. Banks interact strategically where they compete against each other in terms of the volume of loans to make. We find that it is welfare-maximizing to have the banking sector as oligopolistic, i.e., to have a small number of large banks. In addition, moderate inflation improves welfare because it helps to ease congestion in the banking sector.

Suggested Citation

  • Dong, Mei & Huangfu, Stella & Sun, Hongfei, 2020. "A Macroeconomic Theory of Banking Oligopoly," Working Papers 2020-12, University of Sydney, School of Economics.
    • Handle: RePEc:syd:wpaper:2020-12
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    Cited by:

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    2. Schneider, Andreas, 2020. "Credit cooperatives: Market structure, competition, and conduct. Exploring the case of Paraguay," MPRA Paper 102309, University Library of Munich, Germany.
    3. Yerushalmi, Erez & Paladini, Stefania, 2023. "Blockchain in Financial Intermediation and Beyond: What are the Main Barriers for Widespread Adoption?," CAFE Working Papers 22, Centre for Accountancy, Finance and Economics (CAFE), Birmingham City Business School, Birmingham City University.
    4. Choi, Michael & Rocheteau, Guillaume, 2023. "A model of retail banking and the deposits channel of monetary policy," Journal of Monetary Economics, Elsevier, vol. 139(C), pages 127-147.
    5. Sholevar, Maryam & Harris, Laurence, 2019. "Mind the gap: A discussion paper on Financial Literacy, Financial behaviour and Financial Education : Is there any Gender Gap?," OSF Preprints b7zd6, Center for Open Science.
    6. Kun Lv & Shurong Yu & Dian Fu & Jingwen Wang & Chencheng Wang & Junbai Pan, 2022. "The Impact of Financial Development and Green Finance on Regional Energy Intensity: New Evidence from 30 Chinese Provinces," Sustainability, MDPI, vol. 14(15), pages 1-29, July.
    7. Dong, Mei & Xiao, Sylvia Xiaolin, 2024. "Idle liquidity, CBDC and banking," European Economic Review, Elsevier, vol. 164(C).
    8. Altermatt, Lukas & Wang, Zijian, 2024. "Oligopoly banking, risky investment, and monetary policy," European Economic Review, Elsevier, vol. 164(C).

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    More about this item

    Keywords

    banking; oligopoly; liquidity; market frictions;
    All these keywords.

    JEL classification:

    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • E43 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Interest Rates: Determination, Term Structure, and Effects
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • E51 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Money Supply; Credit; Money Multipliers
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill
    • L26 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Entrepreneurship

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