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Interbank Networks in Pre-war Japan: Structure and Implications

Listed author(s):
  • Tetsuji Okazaki

    (Faculty of Economics, University of Tokyo)

  • Michiru Sawada

    (Department of Economics, Nagoya Gakuin University)

Registered author(s):

    In this paper, we explored the structure and implications of interbank networks in pre-war Japan, focusing on director interlocking. It was found that approximately 60% of the banks had at least one connection with another bank through director interlocking. These connections resulted in the construction of complex networks of banks, not to be reduced to core-periphery structures. Based on this finding, the impact of the interbank networks on the financial performance and the survivability of banks was examined. It was revealed that while a bank with a network was not always more profitable compared to a bank without it, a bank which had a network with profitable banks was more profitable. Concerning the probability of failure, it was found that a bank with a network was less likely to fail than a bank without one. In this case as well, the failure probability of a bank was negatively associated with the profitability of the connected banks. In addition, interbank networks affected on bank mergers. Namely, a bank tended to choose a bank in the same network as a counterpart of the merger, which suggests that interbank networks played a role in coordinating bank mergers.

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    Paper provided by CIRJE, Faculty of Economics, University of Tokyo in its series CIRJE F-Series with number CIRJE-F-605.

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    Length: 42pages
    Date of creation: Dec 2008
    Handle: RePEc:tky:fseres:2008cf605
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