activity
20182025
collaborators

10 papers

q-fin.RM2025

Loss of earning capacity in Denmark -- an actuarial perspective

C. Furrer, O. L. Sandqvist

We describe challenges and opportunities related to risk assessment and mitigation for loss of earning capacity insurance with a special focus on Denmark. The presence of public be…

math.ST2024

Non-parametric estimators of scaled cash flows

T. Bathke, C. Furrer

In multi-state life insurance, incidental policyholder behavior gives rise to expected cash flows that are not easily targeted by classic non-parametric estimators if data is subje…

math.ST2023

Conditional Aalen--Johansen estimation

Martin Bladt, Christian Furrer

The conditional Aalen--Johansen estimator, a general-purpose non-parametric estimator of conditional state occupation probabilities, is introduced. The estimator is applicable for…

math.PR2022

Aggregate Markov models in life insurance: properties and valuation

Jamaal Ahmad, Mogens Bladt, Christian Furrer

In multi-state life insurance, an adequate balance between analytic tractability, computational efficiency, and statistical flexibility is of great importance. This might explain t…

q-fin.RM2022

Transaction time models in multi-state life insurance

Kristian Buchardt, Christian Furrer, Oliver Lunding Sandqvist

In life insurance contracts, benefits and premiums are typically paid contingent on the biometric state of the insured. Due to delays between the occurrence, reporting, and settlem…

stat.ME2022

Expert Kaplan--Meier estimation

Martin Bladt, Christian Furrer

The setting of a right-censored random sample subject to contamination is considered. In various fields, expert information is often available and used to overcome the contaminatio…

q-fin.RM2020

Computation of bonus in multi-state life insurance

Jamaal Ahmad, Kristian Buchardt, Christian Furrer

We consider computation of market values of bonus payments in multi-state with-profit life insurance. The bonus scheme consists of additional benefits bought according to a dividen…

math.PR2020

Dynamics of state-wise prospective reserves in the presence of non-monotone information

Marcus C. Christiansen, Christian Furrer

In the presence of monotone information, the stochastic Thiele equation describing the dynamics of state-wise prospective reserves is closely related to the classic martingale repr…

q-fin.MF2019

Tax- and expense-modified risk-minimization for insurance payment processes

Kristian Buchardt, Christian Furrer, Thomas Møller

We study the problem of determining risk-minimizing investment strategies for insurance payment processes in the presence of taxes and expenses. We consider the situation where tax…

math.PR2018

Forward transition rates

K. Buchardt, C. Furrer, M. Steffensen

The idea of forward rates stems from interest rate theory. It has natural connotations to transition rates in multi-state models. The generalization from the forward mortality rate…