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Margin Regulation and Volatility

Author

Listed:
  • Johannes Brumm

    (Karlsruhe Institute of Technology)

  • Michael Grill

    (European Central Bank (ECB))

  • Felix Kubler

    (University of Zurich; Swiss Finance Institute)

  • Karl Schmedders

    (University of Zurich)

Abstract

In this paper we examine the quantitative effects of margin regulation on volatility in asset markets. We consider a general equilibrium in finite-horizon economy with heterogeneous agents and collateral constraints. There are two assets in the economy which can be used as collateral for short-term loans. For the first asset the margin requirement is exogenously regulated while the margin requirement for the second asset is determined endogenously. In our calibrated economy, the presence of collateral constraints leads to strong excess volatility. Thus, a regulation of margin requirements may have stabilizing effects. However, in line with the empirical evidence on margin regulation in U.S. stock markets, we show that changes in the regulation of one class of assets may have only small effects on these assets' return volatility if investors have access to another (unregulated) class of collateralizable assets to take up leverage. In contrast, a countercyclical margin regulation of all asset classes in the economy has a very strong dampening effect on asset return volatility.

Suggested Citation

  • Johannes Brumm & Michael Grill & Felix Kubler & Karl Schmedders, 2013. "Margin Regulation and Volatility," Swiss Finance Institute Research Paper Series 13-59, Swiss Finance Institute.
    • Handle: RePEc:chf:rpseri:rp1359
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    Citations

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    Cited by:

    1. Pengfei Wang & Jing Zhou & Jianjun Miao, 2015. "Housing Bubbles and Policy Analysis," 2015 Meeting Papers 1056, Society for Economic Dynamics.
    2. Yanxi Li & Siu Kai Choy & Mingzhu Wang, 2022. "The potential built‐in supply effect from margin trading in the Chinese stock market," The Financial Review, Eastern Finance Association, vol. 57(4), pages 835-861, November.
    3. Johannes Brumm & Michael Grill & Felix Kubler & Karl Schmedders, 2015. "Collateral Requirements And Asset Prices," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 56(1), pages 1-25, February.
    4. Hui Ying Sng & Yang Zhang & Huanhuan Zheng, 2020. "Margin trade, short sales and financial stability," Journal of Economic Interaction and Coordination, Springer;Society for Economic Science with Heterogeneous Interacting Agents, vol. 15(3), pages 673-702, July.
    5. Chabakauri, Georgy & Han, Brandon Yueyang, 2020. "Collateral constraints and asset prices," Journal of Financial Economics, Elsevier, vol. 138(3), pages 754-776.
    6. Clerc, Laurent & Giovannini, Alberto & Langfield, Sam & Peltonen, Tuomas A. & Portes, Richard & Scheicher, Martin, 2016. "Indirect contagion: the policy problem," ESRB Occasional Paper Series 9, European Systemic Risk Board.
    7. Suzuki, Shiba, 2018. "Inequality and asset fire sales," MPRA Paper 90906, University Library of Munich, Germany.
    8. Berlinger, Edina & Bihary, Zsolt & Dömötör, Barbara, 2024. "Dynamic margin optimization," Finance Research Letters, Elsevier, vol. 68(C).
    9. Dan Cao & Wenlan Luo & Guangyu Nie, 2023. "Global GDSGE Models," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 51, pages 199-225, December.
    10. Corradin, Stefano & Heider, Florian & Hoerova, Marie, 2017. "On collateral: implications for financial stability and monetary policy," Working Paper Series 2107, European Central Bank.
    11. Senarathne, Chamil W., . "The Information Flow Interpretation of Margin Debt Value Data: Evidence from New York Stock Exchange," Asian Journal of Applied Economics, Kasetsart University, Center for Applied Economics Research, vol. 26(01).
    12. Johannes Brumm & Michael Grill & Felix Kubler & Karl Schmedders, 2023. "Re-use of collateral: Leverage, volatility, and welfare," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 47, pages 19-46, January.
    13. Bistra Radeva, 2019. "Stock price fluctuations and GARCH modelling of stock market indexes," Economics and computer science, Publishing house "Knowledge and business" Varna, issue 3, pages 6-19.
    14. Athanasios Geromichalos & Jiwon Lee & Seungduck Lee & Keita Oikawa, 2014. "Over-the-Counter Trade and the Value of Assets as Collateral," Working Papers 143, University of California, Davis, Department of Economics.
    15. Magill, Michael & Quinzii, Martine, 2015. "Prices and investment with collateral and default," Journal of Economic Dynamics and Control, Elsevier, vol. 51(C), pages 111-132.
    16. Laurent Clerc & Alberto Giovannini & Sam Langfield & Tuomas Peltonen & Richard Portes & Martin Scheicher, 2016. "Indirect contagion: the policy problem," ESRB Occasional Paper Series 09, European Systemic Risk Board.

    More about this item

    Keywords

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    JEL classification:

    • D53 - Microeconomics - - General Equilibrium and Disequilibrium - - - Financial Markets
    • G01 - Financial Economics - - General - - - Financial Crises
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G18 - Financial Economics - - General Financial Markets - - - Government Policy and Regulation

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