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Mohammad Nazmul Hasan

Lead Modeling Expert

Risk Analysis

M. Nazmul Hasan works as a Credit Lead Expert and Senior Advisor in the DC Risk Analysis department of the Office of the Comptroller of the Currency (OCC). Dr. Hasan advises senior management of Economics on policy issues, mentors junior economists, and provides technical support for examinations of national banks, on various areas of risk quantification, risk management and modeling practices. His areas of expertise include model development and model risk management activities involving credit underwriting and customer management, regulatory capital calculation and capital planning under Basel accord and CCAR/DFAST stress testing, and implementation of the new accounting standard, Current Expected Credit Losses (CECL) for credit allowance and provisioning. Dr. Hasan is also one of the primary authors of Sound Practices for Model Risk Management (OCC Bulletin 2011-12).

Prior to joining the OCC in 2002 as senior financial economist, Dr. Hasan worked as a senior manager and econometrician at American Express (1999–2002) and as an assistant professor at Illinois State University (1993–99). He has published his research on methodological issues in peer-reviewed journals. Dr. Hasan earned a Master’s in Statistics and a PhD in Economics from the University of Illinois at Urbana Champaign.

Hasan’s research can be found here.

  1. Hasan, M. Nazmul, Nikunj Kapadia, and Akhtar Siddique, “Issuer bias in corporate ratings toward financially constrained firms.” Journal of Credit Risk, 13(4), 1-35, 2017.
  2. Hasan, M. Nazmul, “Rank test of unit root hypothesis with infinite variance errors.” Journal of Econometrics, 104 (2001) 49-65.
  3. Hasan, M. Nazmul and Roger W. Koenker, “Robust Rank Tests of the Unit Root Hypothesis. Econometrica, Vol. 65, No. 1 January 1997, 133-161.
  4. Hasan, M. Nazmul and Roger W. Koenker, “Robust Testing for Unit Root Hypothesis based on Regression Ranks score.” 1994 Proceedings of the Business and Economic Statistics Section, American Statistical Association.

Barakova, Irina, Hasan, M. Nazmul, Parthasarathy, Harini, “Covenant Violations, Collateral and Credit Access: Public and Private Firms.” Available at SSRN: or