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How does the stock market value bank diversification? Empirical evidence from Japanese banks

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  • Sawada, Michiru
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    Abstract

    This paper empirically examines the effect of bank’s revenue diversification across different activities on the stock-based return and risk measures using data on the Japanese banking sector. In the analyses, we measure non-interest income share as a measure for revenue diversification of banks. These analyses confirm the positive effect of revenue diversification by increasing non-interest income share on the franchise values of banks, while there is no strong evidence that it reduce bank risks. In contrast, when non-interest income is broken down into its constituent parts—fee income, trading income and other non-interest income—we find that a shift toward fee income-generating business decreases all types of risks (systematic risk, idiosyncratic risk, and total risk). Furthermore, we find that the effects of bank’s revenue diversification on franchise value and risks are contingent on organizational forms and performance of traditional banking business.

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    File URL: http://mpra.ub.uni-muenchen.de/45852/
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    Bibliographic Info

    Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 45852.

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    Date of creation: Nov 2011
    Date of revision: Nov 2012
    Handle: RePEc:pra:mprapa:45852

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    Related research

    Keywords: Revenue diversification; Bank stock return; Bank risk; Franchise value;

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    1. Keeley, Michael C, 1990. "Deposit Insurance, Risk, and Market Power in Banking," American Economic Review, American Economic Association, vol. 80(5), pages 1183-1200, December.
    2. Konishi, Masaru, 2002. "Bond underwriting by banks and conflicts of interest: Evidence from Japan during the pre-war period," Journal of Banking & Finance, Elsevier, vol. 26(4), pages 767-793, April.
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    5. De Jonghe, Olivier & Vennet, Rudi Vander, 2008. "Competition versus efficiency: What drives franchise values in European banking?," Journal of Banking & Finance, Elsevier, vol. 32(9), pages 1820-1835, September.
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    15. Behr, Andreas & Kamp, Andreas & Memmel, Christoph & Pfingsten, Andreas, 2007. "Diversification and the banks' risk-return-characteristics: evidence from loan portfolios of German banks," Discussion Paper Series 2: Banking and Financial Studies 2007,05, Deutsche Bundesbank, Research Centre.
    16. Nobuyoshi Yamori & Kozo Harimaya & Kazumine Kondo, 2003. "Are Banks Affiliated with Bank Holding Companies More Efficient Than Independent Banks? The Recent Experience Regarding Japanese Regional BHCs," Asia-Pacific Financial Markets, Springer, vol. 10(4), pages 359-376, December.
    17. Stiroh, Kevin J. & Rumble, Adrienne, 2006. "The dark side of diversification: The case of US financial holding companies," Journal of Banking & Finance, Elsevier, vol. 30(8), pages 2131-2161, August.
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