Prof Dr Konstantin Pankrashkin

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Antje Hagen

+49 (0)441 798-3247

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Desislava German

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Equal Opportunities Officer

Carolin Lena Danzer

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Dr Birte Julia Specht

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Dr Sandra Stein

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Ombudsperson for issues of discrimination and sexual harassment

Antje Hagen

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University of Oldenburg School V - School of Mathematics and Science Institute of Mathematics Ammerländer Heerstraße 114 - 118 26129 Oldenburg (Oldb)

How to find us


Current Working Papers

  • Junike, G., Stier, H., Christiansen, M.C., 2022. sequential decompositions at their limit [Link]
  • Christiansen, M.C., 2023. axiomatic characterisation of pointwise Shapley decompositions. [Link]

Publications in Journals

  • Bathke, T., Christiansen, M.C., 2022. two-dimensional forward and backward transition rates. European Actuarial Journal. [Link]
  • Christiansen, M.C., 2023. on the decomposition of an insurer's profits and losses. scandinavian Actuarial Journal 1, 51-70. [Link ]
  • Christiansen, M.C., Furrer. C., 2022. extension of as-if-Markov modelling to scaled payments. Insurance: Mathematics & Economics 107, 288-306 [Link].[Corrigendum]
  • Jetses, J., Christiansen, M.C., 2022. A general surplus decomposition principle in life insurance. Scandinavian Actuarial Journal 10, 901-925 [Link].
  • Christiansen, M.C., 2021. time-dynamic evaluations under non-monotone information generated by marked point processes. finance and stochastics 25/3, 563-596. [Link ].
  • Christiansen, M.C., 2021. On the calculation of prospective and retrospective reserves in non-Markov models. European Actuarial Journal 11/2, 441-462. [Link ]
  • Christiansen , M.C., Furrer, C., 2021. Dynamics of state-wise prospective reserves in the presence of non-monotone information. Insurance: Mathematics and Economics 97, 81-98. [Link ]
  • Schilling, K., Bauer, D., Christiansen, M.C., Kling, A., 2020. Decomposing Dynamic Risks into Risk Components. Management Science 66/12, 5485-6064. [Link]
  • Christiansen, M.C., Djehiche, B., 2020 Nonlinear reserving and multiple contract modifications in life insurance Insurance: Mathematics and Economics 93, 187-195 [Link] [Corrigendum]
  • Adékambi, F., Christiansen, M., 2020 Probability Distributions of Multi-States Insurance Models under Semi-Markov Assumptions. Markov Processes and Related Fields 26/3, 517-534.
  • Hahn, L., Christiansen, M.C., 2019. Mortality projections for non-converging groups of populations. European Actuarial Journal 9/2, 483-518. [Link]
  • Ungolo, F., Christiansen, M.C., Kleinow, T., MacDonald, A.S., 2019. Survival analysis of pension scheme mortality when data are missing. Scandinavian Actuarial Journal 6, 523-547. [Link]
  • Christiansen, M.C., Denuit, M.M., Lucas, N., and J.-P. Schmidt, 2018. Projection models for health expenses. Annals of Actuarial Science 12/1, 185-203.[Link]
  • Christiansen, M.C. and M. Steffensen, 2018. Around the Life-Cycle: Deterministic Consumption-Investment Strategies. North American Actuarial Journal 22/3, 491-507. [Link]
  • Adekambi, F. and M.C. Christiansen, 2017. Integral and differential equations for the moments of multistate models in health insurance. Scandinavian Actuarial Journal 1, 29-50. [Link]
  • Christiansen, M.C. and E. Schinzinger, 2016. A credibility approach for combining likelihoods of generalised linear models. ASTIN Bulletin, 46/3, 531-569. [Link]
  • Schinzinger, E., Denuit, M.M., and M.C. Christiansen, 2016. A multivariate evolutionary credibility model for mortality improvement rates. Insurance: Mathematics and Economics69, 70-81. [Link]
  • Christiansen, M.C., Eling, M., Schmidt, J.-P., and L. Zirkelbach, 2016 Who is changing health insurance coverage? Empirical evidence on policyholder dynamics. Journal of Risk and Insurance,83/2, 269-300.[Link]
  • Christiansen, M.C. and M.A. Fahrenwaldt, 2016. Dynamics of solvency risk in life insurance liabilities. Scandinavian Actuarial Journal, 9, 763-792. [Link]
  • Christiansen, M.C., Henriksen, L.F.B., Schomacker, K.J. and M. Steffensen, 2016 Stress Scenario Generation for Solvency and Risk Management, Scandinavian Actuarial Journal 6, 502-529.[Link]
  • Christiansen, M.C., Spodarev, E. and V. Unseld, 2015. Differences in European Mortality Rates: A Geometric Approach on the Age-Period Plane. ASTIN Bulletin 45/3, 477-502. [Link]
  • Christiansen, M.C., Niemeyer, A. and L. Teigiszerova, 2015. Modelling and forecasting duration-dependent mortality rates. Computational Statistics and Data Analysis 83, 65-81.[Link]
  • Christiansen, M.C. and A. Niemeyer, 2015. On the forward rate concept in multi-state life insurance. Finance and Stochastics 19/2, 295-327. [Link]
  • Christiansen, M.C., Hirsch, C., and V. Schmidt, 2014. Prediction of regionalised insurance risks based on control variates. Statistics & Risk Modeling 31/2, 163-181. [Link]
  • Christiansen, M.C., Denuit, M.M. and J. Dhaene, 2014. Reserve-dependent benefits and costs in life and health insurance contracts. Insurance: Mathematics and Economics 57, 132-137. [Link]
  • Christiansen, M.C. and A. Niemeyer, 2014. The fundamental definition of the Solvency Capital Requirement in Solvency II. ASTIN Bulletin, 44/3, 501-533. [Link]
  • Christiansen, M.C. and N. Loperfido, 2014. Improved approximation of the sum of random vectors by the skew-normal distribution. Journal of Applied Probability 51/2, 466-482. [Link]
  • Christiansen, M.C., 2013. gaussian and linear approximation of stochastic diffusion models for interest and mortality rates. risks 1, 81-100. [Link]
  • Christiansen, M.C., 2013. safety margins for unsystematic biometric risk in life and health insurance. scandinavian Actuarial Journal4, 286-323. [Link]
  • Christiansen, M.C. and M. Steffensen, 2013 Safe-side scenarios for financial and biometrical risk, ASTIN Bulletin 43/3, 323-357. [Link]
  • Christiansen, M.C. and M. Steffensen, 2013. deterministic mean-variance-optimal consumption and investment. stochastics 85/4, 620-636. [Link]
  • Christiansen, M.C., Denuit, M.M., 2013. Worst-case actuarial calculations consistent with single- and multiple-decrement life tables. Insurance: Mathematics and Economics 52/1, 1-5. [Link]
  • Christiansen, M.C., 2012 Multistate models in health insurance, Advances in Statistical Analysis 96, 155-186. [Link]
  • Christiansen, M.C., Denuit, M.M., Lazar, D., 2012. The Solvency II square-root formula for systematic biometric risk. Insurance: Mathematics and Economics 50/2, 257-265. [Link]
  • Christiansen, M.C., Denuit, M.M., 2010. First-order mortality rates and safe-side actuarial calculations in life insurance. ASTIN Bulletin 40/2, 587-614. [Link]
  • Christiansen, M.C., 2010 Biometric worst-case scenarios for multi-state life insurance policies Insurance: Mathematics and Economics 47, 190-197. [Link]
  • Christiansen, M.C., 2008. A sensitivity analysis of typical life insurance contracts with respect to the technical basis. Insurance: Mathematics and Economics 42/2, 787-796. [Link]
  • Christiansen, M.C., 2008. A sensitivity analysis concept for life insurance with respect to a valuation basis of infinite dimension. Insurance: Mathematics and Economics 42/2, 680-690. [Link]
  • Christiansen, M.C., Helwich, M., 2008. Some further ideas concerning the interaction between insurance and investment risks. Blaetter of the DGVFM 29/2, 253-266. [Link]

Publications in Proceedings

  • Christiansen, M.C., 2015. A variational approach for mean-variance-optimal deterministic consumption and investment. In: Innovations in Quantitative Risk Management. K. Glau, M. Scherer, R. Zagst (eds.), Springer Proceedings in Mathematics & Statistics 99, 225-238. [Link]
  • Christiansen, M.C., 2011 Making use of netting effects when composing life insurance contracts.European Actuarial Journal1 (Suppl. 1), 47-60. [Link]
  • Christiansen, M.C., 2007. Comparison of economic and biometric risks in personal insurance. Zeitschrift fuer die gesamte Versicherungswissenschaft, Supplement 2007, 197-205. [Link]

Interdisciplinary Publications

  • Christiansen, M., Schmidt, J.P., Shkel, D., Kaluscha, R., Tepohl, L., and G. Krischak, 2017. A projection of rehabilitation needs in Germany until 2040 based on demographic factors. Health Care 80/05, 489-494.[Link]
  • Klenk, J., Keil, U., Jaensch, A., Christiansen, M.C., and G. Nagel, 2016. Changes in life expectancy 1950-2010: contributions from age- and disease-specific mortality in selected countries. Population Health Metrics 14/20, 1-11. [Link]


  • Christiansen, M.C. A martingale concept for non-monotone information in a jump process framework [Link]A later version of this manuscript was published here.

Doctoral thesis

  • A joint analysis of financial and biometrical risks in life insurance. University of Rostock. Referees: Prof. Dr Hartmut Milbrodt, Prof. Dr Holger Drees, PD Dr Ulrich Orbanz. [Link]
(Changed: 28 Feb 2024)  | 
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