Kimball's Prudence and Two-Fund Separation as Determinants of Mutual Fund Performance Evaluation We consider investors with mean-variance-skewness preferences who aim at selecting one out of F different funds and combining it optimally with the riskless asset and direct stock holdings. Direct...

Direkte Aktienengagements von Investoren und Performancemessung für Investmentfonds Performancemaße werden von Investoren insbesondere als Mittel zur Selektion von Investmentfonds im Rahmen von Ex-ante-Optimierungen verwandt. Unglücklicherweise existieren verschiedene Performancemaße für...

Konzentrationsrisiken unter Basel II: Wann sind Kreditportfolios unendlich granular? Die Diskussion hinsichtlich Kredit-Konzentrationsrisiken wird hauptsächlich durch die Anforderungen an das Kreditrisikomanagement getrieben, wie diese in Säule 2 von Basel II formuliert sind. So fordert Säule...

Derivative financial instruments are frequently used as a tool for influencing the risk ofentrepreneurial uncertain payoff. To this end, an approximation procedure is developed capable ofcalculating the optimal quantity of derivatives to be used. It is assumed that the entrepreneurial cashflow...

Reinsurance and CAT bonds are two alternative risk management instruments used by insurance companies. Insurers should be indifferent between the two instruments in a perfect capital market. However, the theoretical literature suggests that insured risk characteristics and market imperfections...

Enhanced machine learning methods provide an encouraging alternative to forecast asset prices by extending or generalizing the possible model specifications compared to conventional linear regression methods. Even if enhanced methods of machine learning in the literature often lead to better...

We analyze the interaction of explicit and implicit contracts in a model with selfish and fair principals. Fair principals are willing to honor implicit agreements, whereas selfish principals are not. Principals are privately informed about their types. We investigate a separating equilibrium in...

Two factors have proven to be strongly relevant for the subprime mortgage crisis. The first is the lack of screening incentives of originators, which had not been anticipated by investors. The second is that investors relied too much on credit ratings. We examine whether investors have learned...

We investigate the effect of employee heterogeneity on the incentive to put forth effort in a market-based tournament. Employers use the tournament's outcome to estimate employees' abilities and accordingly condition their wage offers. Employees put forth effort, because by doing so they...

In case of a natural catastrophe there is an increased demand for skilled labor and materials which in turn leads to significant price increases that should be taken into account in the forecast of catastrophe losses. Such price effects are referred to as Demand Surge effects. The paper at hand...