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Shock amplification in an interconnected financial system of banks and investment funds

Author

Listed:
  • Sydow, Matthias
  • Schilte, Aurore
  • Covi, Giovanni
  • Deipenbrock, Marija
  • Del Vecchio, Leonardo
  • Fiedor, Paweł
  • Fukker, Gábor
  • Gehrend, Max
  • Gourdel, Régis
  • Grassi, Alberto
  • Hilberg, Björn
  • Kaijser, Michiel
  • Kaoudis, Georgios
  • Mingarelli, Luca
  • Montagna, Mattia
  • Piquard, Thibaut
  • Salakhova, Dilyara
  • Tente, Natalia

Abstract

This paper shows how the combined endogenous reaction of banks and investment funds to an exogenous shock can amplify or dampen losses to the financial system compared to results from single-sector stress testing models. We build a new model of contagion propagation using a very large and granular data set for the euro area. Based on the economic shock caused by the Covid-19 outbreak, we model three sources of exogenous shocks: a default shock, a market shock and a redemption shock. Our contagion mechanism operates through a dual channel of liquidity and solvency risk. The joint modelling of banks and funds provides new insights for the assessment of financial stability risks. Our analysis reveals that adding the fund sector to our model for banks leads to additional losses through fire sales and a further depletion of banks’ capital ratios by around one percentage point. JEL Classification: D85, G01, G21, G23, L14

Suggested Citation

  • Sydow, Matthias & Schilte, Aurore & Covi, Giovanni & Deipenbrock, Marija & Del Vecchio, Leonardo & Fiedor, Paweł & Fukker, Gábor & Gehrend, Max & Gourdel, Régis & Grassi, Alberto & Hilberg, Björn & Ka, 2021. "Shock amplification in an interconnected financial system of banks and investment funds," Working Paper Series 2581, European Central Bank.
    • Handle: RePEc:ecb:ecbwps:20212581
    Note: 448291
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    References listed on IDEAS

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    Cited by:

    1. Fukker, Gábor & Kaijser, Michiel & Mingarelli, Luca & Sydow, Matthias, 2022. "Contagion from market price impact: a price-at-risk perspective," Working Paper Series 2692, European Central Bank.
    2. Gourdel, Régis & Sydow, Matthias, 2022. "Non-banks contagion and the uneven mitigation of climate risk," Working Paper Series 2757, European Central Bank.
    3. Giovanni di Iasio & Spyridon Alogoskoufis & Simon Kordel & Dominika Kryczka & Giulio Nicoletti & Nicholas Vause, 2022. "A model of system-wide stress simulation: market-based finance and the Covid-19 event," Questioni di Economia e Finanza (Occasional Papers) 687, Bank of Italy, Economic Research and International Relations Area.
    4. Nicoletti, Giulio & Rariga, Judit & Rodriguez d’Acri, Costanza, 2024. "Spare tyres with a hole: investment funds under stress and credit to firms," Working Paper Series 2917, European Central Bank.
    5. Hasman, Augusto & Samartín, Margarita, 2023. "Government intervention, linkages and financial fragility," Economic Modelling, Elsevier, vol. 126(C).
    6. Gourdel, Régis & Sydow, Matthias, 2023. "Non-banks contagion and the uneven mitigation of climate risk," International Review of Financial Analysis, Elsevier, vol. 89(C).
    7. Martijn Boermans, 2022. "A literature review of securities holdings statistics research and a practitioner’s guide," Working Papers 757, DNB.
    8. Aldasoro, Iñaki & Hüser, Anne-Caroline & Kok, Christoffer, 2022. "Contagion accounting in stress-testing," Journal of Economic Dynamics and Control, Elsevier, vol. 137(C).
    9. Feinstein, Zachary & Hałaj, Grzegorz, 2023. "Interbank asset-liability networks with fire sale management," Working Paper Series 2806, European Central Bank.

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    More about this item

    Keywords

    fire sales; liquidity; overlapping portfolios; price impact; stress testing;
    All these keywords.

    JEL classification:

    • D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation
    • G01 - Financial Economics - - General - - - Financial Crises
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G23 - Financial Economics - - Financial Institutions and Services - - - Non-bank Financial Institutions; Financial Instruments; Institutional Investors
    • L14 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Transactional Relationships; Contracts and Reputation

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