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Asset Commonality, Debt Maturity and Systemic Risk


  • Allen, Franklin
  • Babus, Ana
  • Carletti, Elena


We develop a model in which asset commonality and short-term debt of banks interact to generate excessive systemic risk. Banks swap assets to diversify their individual risk. Two asset structures arise. In a clustered structure, groups of banks hold common asset portfolios and default together. In an unclustered structure, defaults are more dispersed. Portfolio quality of individual banks is opaque but can be inferred by creditors from aggregate signals about bank solvency. When bank debt is short-term, creditors do not roll over in response to adverse signals and all banks are inefficiently liquidated. This information contagion is more likely under clustered asset structures. In contrast, when bank debt is long-term, welfare is the same under both asset structures.

Suggested Citation

  • Allen, Franklin & Babus, Ana & Carletti, Elena, 2011. "Asset Commonality, Debt Maturity and Systemic Risk," CEPR Discussion Papers 8476, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:8476

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    References listed on IDEAS

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    More about this item


    interim information; rollover risk.; Short-term debt;

    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

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