Zur Person:

Prof. Dr. Gerhard Stahl has served as Chief Research & Development Officer of the HDI Group since August 2023 and has been a Non‑Executive Director of HDI Reinsurance (Ireland) SE since May 2023. Until his retirement from the Executive Board of HDI AG in July 2023, he held senior leadership positions including Chief Risk Officer of the HDI Group and Head of Group Risk Management. He previously worked at the German Federal Financial Supervisory Authority (BaFin), where he led the Risk Modelling Group and contributed substantially to the development of internal models under Solvency II. Prior to joining BaFin, he was a research associate at the University of Heidelberg. For his scientific contributions to financial risk management, he was awarded an honorary doctorate by the University of Bamberg in 2006. He studied mathematics at the Karlsruhe Institute of Technology and has been an honorary professor at the University of Ulm since 2008 and at Leibniz University Hannover since 2010.

Selected publications
• Kiesel, R; Stahl, G. An Uncertainty-based Risk Management Framework for Climate-
Change Risk (2023) (to be published soon in Annals of Actuarial Science (AAS))
• Kiesel, R; Stahl, G. Managing climate risks – but how? (2022) (Article in Insurance ERM,
Issue 44, Winter 2022, pp. 10-11)
• Kiesel, R.; Stahl, G. (2022). Prolegomenon for Managing Climate Risk. (Available at SSRN
4243603)
• Huschens, S.; Stahl, G. Model risk as Multiplicative Risk Factor (2021)
• Scherer, M., Stahl, G. The standard formula of Solvency II: a critical discussion. Eur.
Actuar. J. (2020)
• Kaulbach,D.; Bähr, G.W.; Pohlmann, P. (editors) (2018) Insurance Supervision Act (VAG)
Commentary (commentary by Gerhard Stahl on sections §§ 96 - 121).
• Stahl, G. (2016) Model uncertainty in a holistic perspective, published in Advanced
Modelling in Mathematical Finance (Springer), pp. 189-215
• Bertram, P., Sibbertsen, P., Stahl, G. (2015). The impact of model risk on capital reserves:
A quantitative analysis. Journal of Risk, 17(5).
• Knispel, T.; G. Stahl and S. Weber (2011) From the Equivalence Principle to Market
Consistent Valuation. Annual Report of the German Mathematical Society, 113, 1 - 34
• Stahl, G.; S. Wang and M. Wendt (2011) Validate Correlation of an ESG: Treasury Yields
across Economies. Discussion Paper No. 476, Leibniz Universität Hannover, 1 - 21
• Christoph Bennemann, Lutz Oehlenberg, Gerhard Stahl (editors), Handbook Solvency II,
Schäffer Poeschel, 2011
• Sibbertsen, P.; Stahl, G. and Luedtke, C. (2008) Measuring Model Risk, Discussion Papers
of the Faculty of Economics, University of Hanover dp-409, University of Hanover, Faculty
of Economics.
 

A full overview on my publications can be found on Google Scholar.

Additional information can be found on Wikipedia.