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The Effects of Loan Portfolio Concentration on Brazilian Banks' Return and Risk

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  • Benjamin M. Tabak
  • Dimas M. Fazio
  • Daniel O. Cajueiro

Abstract

This paper tests whether diversification of the credit portfolio at the bank level is associated to better performance and lower risk. We employ a new high frequency (monthly) panel data constructed for the Brazilian banking system with information at the bank level for loans by economic sector. We find that loan portfolio concentration increases returns and also reduces default risk; there are significant size effects; foreign and public banks seem to be less affected by the degree of diversification. An important additional finding is that there is an increasing concentration trend after the breakout of the recent international financial crisis, especially after the failure of Lehman Brothers.

Suggested Citation

  • Benjamin M. Tabak & Dimas M. Fazio & Daniel O. Cajueiro, 2010. "The Effects of Loan Portfolio Concentration on Brazilian Banks' Return and Risk," Working Papers Series 215, Central Bank of Brazil, Research Department.
  • Handle: RePEc:bcb:wpaper:215
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    References listed on IDEAS

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    Cited by:

    1. Tabak, Benjamin M. & Fazio, Dimas M. & Cajueiro, Daniel O., 2013. "Systemically important banks and financial stability: The case of Latin America," Journal of Banking & Finance, Elsevier, vol. 37(10), pages 3855-3866.
    2. Beck, Thorsten & De Jonghe, Olivier, 2013. "Lending concentration, bank performance and systemic risk : exploring cross-country variation," Policy Research Working Paper Series 6604, The World Bank.
    3. Benjamin Tabak & Daniel Cajueiro & Dimas Fazio, 2013. "Financial fragility in a general equilibrium model: the Brazilian case," Annals of Finance, Springer, vol. 9(3), pages 519-541, August.
    4. Nadya Jahn & Christoph Memmel & Andreas Pfingsten, 2016. "Banks’ Specialization versus Diversification in the Loan Portfolio," Schmalenbach Business Review, Springer;Schmalenbach-Gesellschaft, vol. 17(1), pages 25-48, April.
    5. Jorge O. Moreno & Renata Herrerías, 2015. "Analyzing the Size, Diffusion, and Spillover ff Loans Risk," Remef - The Mexican Journal of Economics and Finance, Instituto Mexicano de Ejecutivos de Finanzas. Remef, September.
    6. Line Drapeau & Claudia Champagne, 2015. "Do Syndicated Loans Influence Systemic Risk? An Empirical Analysis of the Canadian Syndicated Loan Market," Review of Economics & Finance, Better Advances Press, Canada, vol. 5, pages 22-41, November.
    7. Tajik, Mohammad & Aliakbari, Saeideh & Ghalia, Thaana & Kaffash, Sepideh, 2015. "House prices and credit risk: Evidence from the United States," Economic Modelling, Elsevier, vol. 51(C), pages 123-135.
    8. Tabak, Benjamin M. & Gomes, Guilherme M.R. & da Silva Medeiros, Maurício, 2015. "The impact of market power at bank level in risk-taking: The Brazilian case," International Review of Financial Analysis, Elsevier, vol. 40(C), pages 154-165.
    9. Tabak, Benjamin M. & Takami, Marcelo & Rocha, Jadson M.C. & Cajueiro, Daniel O. & Souza, Sergio R.S., 2014. "Directed clustering coefficient as a measure of systemic risk in complex banking networks," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 394(C), pages 211-216.
    10. Florian Leon, 2017. "Implications of loan portfolio concentration in Cambodia," Economics Bulletin, AccessEcon, vol. 37(1), pages 282-296.
    11. Mircea Epure & Esteban Lafuente, 2015. "Monitoring bank performance in the presence of risk," Journal of Productivity Analysis, Springer, vol. 44(3), pages 265-281, December.
    12. Thiago Christiano Silva & Michel Alexandre da Silva & Benjamin Miranda Tabak, 2016. "Modeling Financial Networks: a feedback approach," Working Papers Series 438, Central Bank of Brazil, Research Department.
    13. Jahn, Nadya & Memmel, Christoph & Pfingsten, Andreas, 2013. "Banks' concentration versus diversification in the loan portfolio: New evidence from Germany," Discussion Papers 53/2013, Deutsche Bundesbank.
    14. Hoxha, Indrit, 2013. "The market structure of the banking sector and financially dependent manufacturing sectors," International Review of Economics & Finance, Elsevier, vol. 27(C), pages 432-444.
    15. repec:spt:fininv:v:7:y:2018:i:2:f:7_2_2 is not listed on IDEAS
    16. de Haan, Jakob & Poghosyan, Tigran, 2012. "Size and earnings volatility of US bank holding companies," Journal of Banking & Finance, Elsevier, vol. 36(11), pages 3008-3016.
    17. Rao, Pingui & Yue, Heng & Zhu, Jigao, 2015. "An investigation of credit borrower concentration," Journal of Banking & Finance, Elsevier, vol. 54(C), pages 208-221.
    18. Mathur, Ike & Marcelin, Isaac, 2015. "Institutional failure or market failure?," Journal of Banking & Finance, Elsevier, vol. 52(C), pages 266-280.
    19. Michael Brei & Carlos Winograd, 2012. "Foreign banks, corporate strategy and financial stability: lessons from the river plate," Working Papers halshs-00703738, HAL.
    20. Brent Ambrose & Michael Shafer & Yildiray Yildirim, 2018. "The Impact of Tenant Diversification on Spreads and Default Rates for Mortgages on Retail Properties," The Journal of Real Estate Finance and Economics, Springer, vol. 56(1), pages 1-32, January.
    21. Michael Brei & Carlos Winograd, 2012. "Foreign banks, corporate strategy and financial stability: lessons from the river plate," PSE Working Papers halshs-00703738, HAL.
    22. Tsangyao Chang & Chin-Chih Chen, 2017. "The Impact of Bank Size on Profit Stability in China," Journal of Applied Finance & Banking, SCIENPRESS Ltd, vol. 7(2), pages 1-4.
    23. repec:eee:jaecon:v:64:y:2017:i:2:p:253-277 is not listed on IDEAS
    24. Beck, Thorsten & De Jonghe, Olivier & Mulier, Klaas, 2017. "Bank sectoral concentration and (systemic) risk: Evidence from a worldwide sample of banks," CEPR Discussion Papers 12009, C.E.P.R. Discussion Papers.

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