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A Novel Banking Supervision Method using the Minimum Dominating Set

Author

Listed:
  • Periklis Gogas

    () (Department of Economics, Democritus University of Thrace; The Rimini Centre for Economic Analysis, Italy)

  • Theophilos Papadimitriou

    () (Department of Economics, Democritus University of Thrace)

  • Maria-Artemis Matthaiou

    () (Department of Economics, Democritus University of Thrace)

Abstract

The magnitude of the recent financial crisis, which started from the U.S. and expanded in Europe, change the perspective on banking supervision. The recent consensus is that to preserve a healthy and stable banking network, the monitoring of all financial institutions should be under a single regulator, the Central Bank. In this paper we study the interrelations of banking institutions under the framework of Complex Networks. Specifically, our goal is to provide an auxiliary early warning system for the banking system’s supervisor that would be used in addition to the existing schemes of control. We employ the Minimum Dominating Set (MDS) methodology to reveal the most strategically important banks of the banking network and use them as alarm triggers. By monitoring the MDS subset the regulators can have an overview of the whole network. Our dataset is formed from the 200 largest American banks and we examine their interconnection through their total deposits. The MDS concept is applied for the first time in this setting and the results show that it may be an essential supplementary tool to the arsenal of a Central Bank.

Suggested Citation

  • Periklis Gogas & Theophilos Papadimitriou & Maria-Artemis Matthaiou, 2014. "A Novel Banking Supervision Method using the Minimum Dominating Set," Working Paper series 29_14, Rimini Centre for Economic Analysis.
  • Handle: RePEc:rim:rimwps:29_14
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    References listed on IDEAS

    as
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    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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