For a risk vector $V$, whose components are shared among agents by some random mechanism, we obtain asymptotic lower and upper bounds for the agents' exposure risk and the systemic risk in the market. Risk is measured by Value-at-Risk or Conditional Tail Expectation. We assume Pareto tails for...

We model business relationships exemplified for a (re)insurance market by a bipartite graph which determines the sharing of severe losses. Using Pareto-tailed claims and multivariate regular variation we obtain asymptotic results for the Value-at-Risk and the Conditional Tail Expectation. We...

Trotz einer grundsätzlich positiven Ausgangslage mehren sich die Stimmen, dass in den kommenden Jahren mit erheblichen Umwälzungen in der Schweizerischen Assekuranz zu rechnen ist. Vor diesem Hintergrund beschreibt die vorliegende Studie den heutigen Stand der Assekuranz und zeigt acht...

Trotz einer grundsätzlich positiven Ausgangslage mehren sich die Stimmen, dass in den kommenden Jahren mit erheblichen Umwälzungen in der Schweizerischen Assekuranz zu rechnen ist. Vor diesem Hintergrund beschreibt die vorliegende Studie den heutigen Stand der Assekuranz und zeigt acht...

Paper I, "The Liability Regime of Insurance Pools and Its Impact on Pricing", addresses the pricing of insurance premiums for specific forms of risk sharing in the insurance industry. The implicit diversification effect from this risk sharing on the default risk is discussed in connection with a...

We provide an alternative method for analysis of multifractal properties of time series. The new approach takes into account the behaviour of the whole multifractal profile of the generalized Hurst exponent $h(q)$ for all moment orders $q$, not limited only to the edge values of $h(q)$...

We construct explicitly a bridge process whose distribution, in its own filtration, is the same as the difference of two independent Poisson processes with the same intensity and its time 1 value satisfies a specific constraint. This construction allows us to show the existence of...

The agent-based computational economical model for the emergence of money from the initial barter trading, inspired by Menger's postulate that money can spontaneously emerge in a commodity exchange economy, is extensively studied. The model considered, while manageable, is sufficiently complex,...

Recently the interest of researchers has shifted from the analysis of synchronous relationships of financial instruments to the analysis of more meaningful asynchronous relationships. Both of those analyses are concentrated only on Pearson's correlation coefficient and thus intraday lead-lag...

We study quantitatively the level of false multifractal signal one may encounter while analyzing multifractal phenomena in time series within multifractal detrended fluctuation analysis (MF-DFA). The investigated effect appears as a result of finite length of used data series and is additionally...