Rezensionen

Ohne Zusammenfassung     

Erhöht Harninkontinenz die Sturzgefahr?

Ern?hrung im Alter - Alles, was schmeckt und vertragen wird, ist erlaubt. Auf dem Speiseplan von Gesunden sollen frisch zubereitete, energiearme Gerichte mit hohem Vitamin- und Mineralstoffanteil stehen. Pflegebedürftige ?ltere Menschen sind hingegen h?ufig von Ern?hrungsdefiziten bis hin zu einer Mangelern?hrung betroffen.     

Local Expected Shortfall-Hedging in Discrete Time

This paper proposes a self-financing trading strategy that minimizes theexpected shortfall locally when hedging a European contingentclaim. A positive shortfall occurs if the hedger is not willing to follow a perfect hedging or a superhedging strategy. In contrast to the classicalvariance criterion, the expected shortfall criterion dependsonly on undesirable outcomes where the terminal value of the writtenoption exceeds the terminal value of the hedgeportfolio. Searching a strategy which minimizes the expected shortfallis equivalent to the iterative solution of linear programs whosenumber increases exponentially with respect to the number of tradingdates. Therefore, we partition this complex overall problem intoseveral one-period problems and minimize the expected shortfall onlylocally, i.e., only over the next trading period. This approximation is quite accurate and the number of linear programs to be solved increases only linearly with respect to the number of trading dates.     

Jürgen Prott 60 Jahre

Ohne Zusammenfassung     

The Interrelationship of Governance,Trust, and Ethics in Temporary Organizations

This study investigates the variety of ethical decisions of project managers and their impact from corporate governance and project governance structures. The roles of personal trust and system trust as a mechanism to steer ethical decision making in different governance settings is explored. Nine qualitative case studies in Europe, Asia, and Australia show that ethical decision making is contingent on trust, which in turn is contingent on the fulfillment of personal expectations within a given governance structure. The findings show the prerequisites for ethical decision making and the consequences of lack of trust. Further managerial and theoretical implications are discussed.     

Diversification as a commodity policy

The disparities between the economies of developing countries and those of industrialised nations are still widening. How can the economic process in the developing countries be accelerated as soon as possible? The following article examines this decisive question.     

Kommunizieren trotz Hörproblem

Pflege bei altersbedingter Schwerh?rigkeit - Nach Hypertonie und Erkrankungen des Bewegungsapparates steht die altersbedingte Schwerh?rigkeit an dritter Stelle der chronischen Krankheiten. Trotzdem ist es nach wie vor ein Tabu, darüber zu reden nicht mehr gut h?ren zu k?nnen – ein Faktor, der die Verst?ndigung zus?tzlich erschwert. Doch wie l?sst sich die Kommunikation mit schwerh?rigen Menschen gestalten und verbessern?