Arbeitspapier

Interconnected banks and systemically important exposures

We study the interplay between two channels of interconnectedness in the banking system. The first one is a direct interconnectedness, via a network of interbank loans, banks' loans to other corporate and retail clients, and securities holdings. The second channel is an indirect interconnectedness, via exposures to common asset classes. To this end, we analyze a unique supervisory data set collected by the European Central Bank that covers 26 large banks in the euro area. To assess the impact of contagion, we apply a structural valuation model NEVA (Barucca et al., 2016a), in which common shocks to banks' external assets are reflected in a consistent way in the market value of banks' mutual liabilities through the network of obligations. We identify a strongly non-linear relationship between diversification of exposures, shock size, and losses due to interbank contagion. Moreover, the most systemically important sectors tend to be the households and the financial sectors of larger countries because of their size and position in the financial network. Finally, we provide policy insights into the potential impact of more diversified versus more domestic portfolio allocation strategies on the propagation of contagion, which are relevant to the policy discussion on the European Capital Market Union.

Sprache
Englisch

Erschienen in
Series: Bank of Canada Staff Working Paper ; No. 2019-44

Klassifikation
Wirtschaft
Computational Techniques; Simulation Modeling
International Financial Markets
Banks; Depository Institutions; Micro Finance Institutions; Mortgages
Thema
Financial stability

Ereignis
Geistige Schöpfung
(wer)
Roncoroni, Alan
Battiston, Stefano
D'Errico, Marco
Halaj, Grzegorz
Kok, Christoffer
Ereignis
Veröffentlichung
(wer)
Bank of Canada
(wo)
Ottawa
(wann)
2019

DOI
doi:10.34989/swp-2019-44
Handle
Letzte Aktualisierung
10.03.2025, 11:44 MEZ

Datenpartner

Dieses Objekt wird bereitgestellt von:
ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften - Leibniz-Informationszentrum Wirtschaft. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.

Objekttyp

  • Arbeitspapier

Beteiligte

  • Roncoroni, Alan
  • Battiston, Stefano
  • D'Errico, Marco
  • Halaj, Grzegorz
  • Kok, Christoffer
  • Bank of Canada

Entstanden

  • 2019

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