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The determinants of portuguese banks' capital buffers

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  • Miguel Boucinha
  • Nuno Ribeiro

Abstract

The purpose of the present paper is to shed some light on why Portuguese banks hold significant capital buffers above the required regulatory minimum, through the estimation of a dynamic panel data model. The main findings are that the capital buffer is positively influenced by several broad risk measures, suggesting that the introduction of the more sensitive regulation in Basel II might not affect Portuguese banks’ capital ratios as much as one could expect. Provisions and high and stable profitability are found to be substitutes for capital buffers, whereas larger banks seem to hold less excess capital. A negative business cycle effect is also found, and several other hypotheses are tested.
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Suggested Citation

  • Miguel Boucinha & Nuno Ribeiro, 2008. "The determinants of portuguese banks' capital buffers," Economic Bulletin and Financial Stability Report Articles and Banco de Portugal Economic Studies, Banco de Portugal, Economics and Research Department.
    • Handle: RePEc:ptu:bdpart:r200702
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    References listed on IDEAS

    as
    1. Stolz, Stéphanie & Wedow, Michael, 2005. "Banks' regulatory capital buffer and the business cycle: evidence for German savings and cooperative banks," Discussion Paper Series 2: Banking and Financial Studies 2005,07, Deutsche Bundesbank.
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    Cited by:

    1. Sherene A. Bailey-Tapper, 2011. "Investigating the Link between Bank Capital & Economic Activity: Evidence on Jamaican Panel," Money Affairs, CEMLA, vol. 0(2), pages 163-188, July-Dece.
    2. Pavla Klepková Vodová, 2019. "Determinants of Solvency in Selected CEE Banking Sectors: Does Affiliation with the Financial Conglomerate Matter?," Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, Mendel University Press, vol. 67(2), pages 493-501.
    3. Sine KONTBAY BUSUN & Adnan KASMAN, 2015. "A Note on Bank Capital Buffer, Portfolio Risk and Business Cycle," Ege Academic Review, Ege University Faculty of Economics and Administrative Sciences, vol. 15(1), pages 1-7.
    4. José Eduardo Gómez-González & Nidia Ruth Reyes, 2011. "Firm Failure and Relation Lending: New Evidence from Small Businesses," Money Affairs, CEMLA, vol. 0(2), pages 123-141, July-Dece.
    5. Daher, Hassan & Masih, Mansur & Ibrahim, Mansor, 2015. "The unique risk exposures of Islamic banks’ capital buffers: A dynamic panel data analysis," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 36(C), pages 36-52.
    6. Khurram Iftikhar & Syed Faizan Iftikhar, 2018. "The impact of business cycle on capital buffer during the period of Basel-II and Basel-III: Evidence from the Pakistani banks," International Journal of Financial Engineering (IJFE), World Scientific Publishing Co. Pte. Ltd., vol. 5(04), pages 1-20, December.
    7. Rodrigo Alfaro & Andrés Sagner, 2011. "Stress Tests for Banking Sector: A Technical Note," Money Affairs, CEMLA, vol. 0(2), pages 143-162, July-Dece.
    8. Andrene Senior & Sherene A. Bailey, 2017. "Estimación y pronóstico del riesgo de incumplimiento: evidencias para Jamaica," Monetaria, Centro de Estudios Monetarios Latinoamericanos, CEMLA, vol. 0(1), pages 141-174, enero-jun.
    9. Ana Kundid Novokmet, 2015. "Cyclicality of bank capital buffers in South-Eastern Europe: endogenous and exogenous aspects," Financial Theory and Practice, Institute of Public Finance, vol. 39(2), pages 139-169.
    10. Syed Moudud-Ul-Huq, 2019. "Banks’ capital buffers, risk, and efficiency in emerging economies: are they counter-cyclical?," Eurasian Economic Review, Springer;Eurasia Business and Economics Society, vol. 9(4), pages 467-492, December.
    11. Daher, Hassan & Masih, A.Mansur M. & Ibrahim, Mansor H., 2014. "Islamic Banks’ Capital Buffers: Unique Risk Exposures and the Disciplining Effects of Charter Values," MPRA Paper 56947, University Library of Munich, Germany.

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    More about this item

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation
    • C23 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Models with Panel Data; Spatio-temporal Models

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