Bandyopadhyay, Arindam (2011): Internal Assessment of Credit Concentration Risk Capital: A Portfolio Analysis of Indian Public Sector Bank.
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This paper aims at working out a more risk sensitive measure of concentration risk and captures its impact in terms of capital number that will help the bank’s top management to manage it efficiently as well as meet the regulatory compliance. We have designed a more risk sensitive measures like expected loss based Hirschman-Herfindahl Index (HHI), loss correlation approach (single as well as multi factor), credit value at risk (C-VaR) based on bank’s internal loss data history that would measure credit concentration and suggest the amount of capital required to cover concentration risk. Using detailed borrower wide, facility wide, industry and regional loan portfolio data of a mid sized public sector bank in India, our paper attempts to provide a detail insight into measurement of concentration risk in credit portfolio and understand its impact in terms of economic capital for the bank as a whole. Regulators and other stakeholders worldwide are asking for more accurate and precise measure of concentration risk in terms of capital numbers. The detailed analysis and methods used in this paper is an attempt to find out a solution in this direction.
|Item Type:||MPRA Paper|
|Original Title:||Internal Assessment of Credit Concentration Risk Capital: A Portfolio Analysis of Indian Public Sector Bank|
|Keywords:||Portfolio Credit Concentration Risk, Bank Capital|
|Subjects:||G - Financial Economics > G3 - Corporate Finance and Governance > G32 - Financing Policy ; Financial Risk and Risk Management ; Capital and Ownership Structure ; Value of Firms ; Goodwill
G - Financial Economics > G2 - Financial Institutions and Services > G21 - Banks ; Depository Institutions ; Micro Finance Institutions ; Mortgages
|Depositing User:||Dr. Arindam Bandyopadhyay|
|Date Deposited:||07. Feb 2011 21:42|
|Last Modified:||12. Feb 2013 11:58|
Bandyopadhyay, A., Chherawala, T., & Saha A. (2007). Calibrating asset correlation for Indian corporate exposures: implications for regulatory capital. The Journal of Risk Finance, 8 (4), 330-348.
Basel committee on banking supervison. (2006). International Convergence of Capital Measurement and Capital Standards: A Revised Framework - Comprehensive Version. Working Paper. URL: http://www.bis.org/publ/bcbs128.htm.
De Servigny, A., & Renault, O. (2003). Correlations evidence. RISK, 16 (7), 90-94.
Dev, A. (2004). Economic Capital: A Practitioner Guide. RISK Book, September.
Düllmann, K., & Masschelein, N. (2007). A tractable model to measure sector concentration risk in credit portfolios. Journal of Financial Services Research, 32 (1-2) 55-79.
Egloff, D., Leippold, M., & Vanini, P. (2004). A simple model of credit contagion. University of Zurich, working paper, September.
Fiori, R., Foglia, A., & Ianotti, S. (2006). Estimating macroeconomic credit risk and sectoral default rate correlations for the Italian economy. working paper.
Gordy, M. (2003). A risk-factor model foundation for ratings-based bank capital Rules. Journal of Financial Intermediation, 12 (3), 199–232.
Gürtler, M., Hibbeln, M., & Vöhringer, C. (2010). Measuring concentration risk for regulatory purposes. Journal of Risk, 12(3), 69-104.
Heitfield, E., Burton, S., & Chomsisengphet, S. (2006). Systematic and idiosyncratic risk in syndicated loan portfolios. Journal of Credit Risk, 2, 3-31.
Jokivuolle, E., & Peura, S. (2010). Rating targeting and dynamic economic capital. The Journal of Risk, 12 (4).
Lucas, D.J. (1995). Default correlation and credit analysis. Journal of Fixed Income, 4 (4), 76-87.
Nagpal, K., & Bahar, R. (2001). Measuring default correlation. RISK, 14 (March), 129-132.
Reynold, D. (2009). Analyzing concentration risk. Algorithmics working paper.
Taylor, J. (2002). A unified approach to credit limit setting. RMA Journal 84 (10), 56-61.
Vasicek, O. A. (1977). An equilibrium characterization on the term structure. Journal of Financial Economics, 5, 177-188.
Walter, J. S. (2004). Economic capital, performance evaluation, and capital adequacy at bank of America. RMA Journal, March.
Zhang, J., Zhu, F., & Lee, J. (2008). Asset correlation, realized default correlation, and portfolio credit risk. Moody’s KMV technical working paper. URL: http://www.moodyskmv.com/research/files/wp/Asset_Correlation_and_Portfolio_Risk.pdf.