Risk modelling (in particular market risk, credit risk and liquidity risk) and model validation, economic capital models, derivative markets and products, market indicators and market discipline
Selected Publications and Working Papers
a) Refereed journals
Duellmann, M., J. Küll and M. Kunisch (2010), Estimating Asset Correlations From Stock Prices or Default Rates – Which Method is Superior?, Journal of Economic Dynamics and Control, 34(11), 2341-2357.
Duellmann, K. and M. Erdelmeier (2009), Crash Testing
German Banks, International Journal of Central Banking, 5(3), 139-174.
Duellmann, K., M. Scheicher and C. Schmieder (2008), Asset correlations and credit portfolio risk – an empirical analysis, Journal of Credit Risk, 4(2), 37-62.
Duellmann, K. and A. Sosinska (2007), Credit Default
Swap Prices as Risk Indicators of Listed German Banks, Financial Markets and
Portfolio Management, Vol 21(3), 269-292.
Duellmann, K. and N. Masschelein (2007), A Tractable Model to Measure Sector Concentration Risk in Credit Portfolios, Journal of Financial Services Research, 32(1-2), 55-79.
Duellmann, K., M. Uhrig-Homburg and M. Windfuhr (2000),
Risk Structure of Interest Rates: An Empirical Analysis for Deutschemark-denominated
Bonds, In: European Financial Management, 6(3), 367-388.
Duellmann, K. and M. Windfuhr (2000), Credit Spreads
Between German and Italian Sovereign Bonds - Do One-Factor Affine Models Work?,
In: Canadian Journal of Administrative Sciences, 17(2), 166-181.
b) Other publications
Dietz, T. and K. Duellmann (2011), Konzentrationsrisiken
nach den MaRisk, In: R. Eller, M. Reif, M. Heinrich, R. Perrot and M. Reif
(eds.), Jahrbuch Treasury und Private Banking, Roland Eller Consulting GmbH,
295-311 (German only).
Duellmann, K. (2010), Regulatory Capital, In: R. Cont (ed.), Encyclopedia of Quantitative Finance, John Wiley & Sons, 1525-1539.
Duellmann, K. (2007), Measuring Concentration Risk
in Credit Portfolios, In: G. Christodoulakis and S. Satchell (ed.) The Analytics
of Risk Model Validation, Academic Press, 59-78.
Duellmann, K. (2006), Basel II - Achievements and Challenges,
In: K.-H. Waldmann and U. M. Stocker, Operations Research Proceedings,
Springer, 2007.
Duellmann, K. and N. Masschelein (2006), The Impact
of Sector Concentration in Loan Portfolios on Economic Capital, In: Financial
Stability Review (ed.), National Bank of Belgium, 175-187.
Duellmann, K. and M. Trapp (2005), Systematic Risk
in Recovery Rates of US Corporate Credit Exposures, In: E. I. Altman, A.
Resti and A. Sironi (ed.), Recovery Risk The Next Challenge in Credit Risk
Management, Riskbooks, 235-252.
Duellmann, K. (2002), Konversionsfaktoren für
Future-Kontrakte auf ausfallrisikobehaftete Anleihen, DUV Gabler Edition
Wissenschaft, (German only).
Duellmann, K. and W. Bühler (1998), Produktmanagement:
Zu den Erfolgschancen eines Pfandbrief-Futures an der Deutschen Terminbörse,
In: H. Glaser, E. F. Schröder und A. v. Werder (eds.), Organisation
im Wandel der Märkte, Gabler Verlag, (German only).
c) Recent working papers
Duellmann, K. and N. Puzanova, Systemic risk contributions: A credit portfolio approach, Deutsche Bundesbank Discussion Paper (Series 2) 08/2011.
Böve, R., K. Duellmann and A. Pfingsten, Do specialization
benefits outweigh concentration risks in credit portfolios of German banks?,
Deutsche Bundesbank Discussion Paper (Series 2) 10/2010.
Duellmann, K. and M. Erdelmeier, Stress testing German banks in a downturn of the automobile industry, Deutsche Bundesbank Discussion Paper (Series 2) 02/2009.
Duellmann, K., M. Scheicher and C. Schmieder, Asset correlations and credit portfolio risk - an empirical analysis, Deutsche Bundesbank Discussion Paper (Series 2) 13/2007.
Duellmann, K. and N. Masschelein, Sector concentration in loan portfolios and economic capital, Deutsche Bundesbank Discussion Paper (Series 2) 09/2006.
Duellmann, K., Measuring business sector concentration by an infection model, Deutsche Bundesbank Discussion Paper (Series 2) 03/2006.