Dieses Buch behandelt die Frage, wie mit Blick auf die Veränderungen des Arbeitsmarktes die Erwerbstätigkeit von Frauen und Älteren erleichtert werden kann. Die demographische Entwicklung führt dazu, daß das durchschnittliche Alter der Arbeitskräfte steigt und sich das...

Zur Modellierung des VDAX-Volatilitätsindexes In dieser Arbeit werden zwei verwandte Ansätze zur Modellierung des VDAX-Volatilitätsindexes anhand einer historischen Zeitreihe verglichen. Der Standardansatz ist das weitverbreitete "Mean Reverting Diffusion"-Modell. Die Alternative besteht in...

We study the effect of secondary markets on equity-linked life insurance contracts with surrender guarantees. The policyholders are assumed to be boundedly rational in giving up their contracts, and a proportion of policyholders will access the secondary markets instead of surrendering the...

We study the valuation and hedging of unit-linked life insurance contracts in a setting where mortality intensity is governed by a stochastic process. We focus on model risk arising from different specifications for the mortality intensity. To do so we assume that the mortality intensity is...

We characterize convergence of a sequence of d-dimensional random vectors by convergence of the one-dimensional margins and of the copula. The result is applied to the approximation of portofolio modelled by t-copulas with large degrees of freedom, and to the convergence of certain dependence...

We study the valuation of unit-linked life insurance contracts with surrender guarantees. Instead of solving an optimal stopping problem, we propose a more realistic approach accounting for policyholders’ rationality in exercising their surrender option. The valuation is conducted at the...

We compare two types of reinsurance: excess of loss (EOL) and largest claim reinsurance (LCR), each of which transfers the payment of part, or all, of one or more large claims from the primary insurance company (the cedant) to a reinsurer. The primary insurer's point of view is documented in...

We introduce a dynamic principal-agent model to understand the nature of contracts between an employer and an independent gig worker. We model the worker's self-respect with an endogenous participation constraint; he accepts a job offer if and only if its utility is at least as large as his...