collaborators

7 papers

math.OC2026

A Rank-Dependent Theory for Decision under Risk and Ambiguity

Roger J. A. Laeven, Mitja Stadje

This paper axiomatizes, in a two-stage setup, a new theory for decision under risk and ambiguity. The axiomatized preference relation on the space of random v…

q-fin.MF2026

Time-Consistent Asset Allocation for Risk Measures in a Lévy Market

Felix Fießinger, Mitja Stadje

Focusing on gains & losses relative to a risk-free benchmark instead of terminal wealth, we consider an asset allocation problem to maximize time-consistently a mean-risk reward fu…

q-fin.MF2026

Optimal Capital Structure for Life Insurance Companies Offering Surplus Participation

Felix Fießinger, Mitja Stadje

We adapt Leland's dynamic capital structure model to the context of an insurance company selling participating life insurance contracts explaining the existence of life insurance c…

q-fin.MF2026

Utility maximization under endogenous pricing

Thai Nguyen, Mitja Stadje

We study the expected utility maximization problem of a large investor who is allowed to make transactions on tradable assets in an incomplete financial market with endogenous perm…

math.PR2025

The Itô-Ventzell formula for weak Dirichlet processes

Felix Fießinger, Mitja Stadje

This paper proves an extension of the Itô-Ventzell formula that applies to stochastic flows in for continuous weak Dirichlet processes. We apply this theorem, for exampl…

q-fin.MF2025

Mean-Variance Optimization for Participating Life Insurance Contracts

Felix Fießinger, Mitja Stadje

This paper studies the equity holders' mean-variance optimal portfolio choice problem for (non-)protected participating life insurance contracts. We derive explicit formulas for th…