Diversification and Systemic Risk: A Financial Network Perspective

Rüdiger Frey, Juraj Hledik

Publikation: Wissenschaftliche FachzeitschriftOriginalbeitrag in FachzeitschriftBegutachtung

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Abstract

In this paper, we study the implications of diversification in the asset portfolios of banks for financial stability and systemic risk. Adding to the existing literature, we analyse this issue in a network model of the interbank market. We carry out a simulation study that determines the probability of a systemic crisis in the banking network as a function of both the level of diversification, and the connectivity and structure of the financial network. In contrast to earlier studies we find that diversification at the level of individual banks may be beneficial for financial stability even if it does lead to a higher asset return correlation across banks.

Keywords: systemic risk; financial network; diversification
JEL Classification: G21; G28
OriginalspracheEnglisch
Seiten (von - bis)54
FachzeitschriftRisks
Jahrgang6
Ausgabenummer2
DOIs
PublikationsstatusVeröffentlicht - 2018

Österreichische Systematik der Wissenschaftszweige (ÖFOS)

  • 502009 Finanzwirtschaft
  • 101024 Wahrscheinlichkeitstheorie
  • 101007 Finanzmathematik

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