A great proportion of stock dynamics can be explained using publicly availableinformation. The relationship between dynamics and public information may be ofnonlinear character. In this paper we offer an approach to stock picking by employing so-called decision trees and applying them to XETRA...

A pay-as-you-go (paygo) pension program may provide intergenerational pooling of risks toindividuals´ labor and capital income over the life cycle. By means of a model that providesilluminating closed form solutions, we demonstrate that the magnitude of the optimal paygoprogram and the nature...

We analyze the effect of enhanced annuities on an insurer engaging in individualunderwriting. We use a frailty model for the heterogeneity of the insured populationand model the individual underwriting by a random variable that positivelycorrelates with the corresponding frailty factor. For a...

It is frequently noted that investment funds with a nonnormal return distributioncannot be adequately evaluated using the classic Sharpe ratio. However, recent research compared the Sharpe ratio with other performance measures and found virtually identical rank ordering using hedge fund data. We...

Das Preis-Leistungs-Verhältnis herkömmlicher Rentenversicherungen steigt mitder Lebenserwartung des Versicherten. Derartige Produkte sind damit nur für Personen mit relativ hoher Lebenserwartung attraktiv. Der Nachteil für Versichertemit reduzierter Lebenserwartung wird durch steuerliche...

In this article we identify risk and return profiles of two types of investment guaranteesin unit-linked life insurance products: an interest rate guarantee and a lookbackguarantee. This is done by comparing guarantee costs and performance for thematurity payoff and by testing the investment...

In der Literatur wird häufig vermutet, dass eine zunehmende Anzahl Hedgefondseinen negativen Einfluss auf die Renditen dieser Fonds haben könnte. DieserVermutung wird in diesem Beitrag nachgegangen. Wir verfolgen dabei zweiZiele: Zum einen geben wir einen Überblick über die Entwicklung des...

The Sharpe ratio is adequate for evaluating investment funds when the returns ofthose funds are normally distributed and the investor intends to place all his risky assetsinto just one investment fund. Hedge fund returns differ significantly from anormal distribution. For this reason, other...

Data envelopment analysis (DEA) is a nonparametric method from the area of operationsresearch that measures the relationship of produced outputs to assignedinputs and determines an efficiency score. This efficiency score can be interpretedas a performance measure in investment analysis. Recent...

Trotz einer sehr positiven Entwicklung des weltweiten Hedgefonds-Marktes undsehr positiver Erwartungen der deutschen Fondsindustrie hinsichtlich der Marktentwicklungist bislang in Deutschland eher ein zurückhaltendes Interesse anHedgefonds zu beobachten. Was sind die Gründe für die...