In Deutschland klaffen Angebot und Nachfrage von Spendeorganen weit auseinander. Das Spendenaufkommen hängt wesentlich vom institutionellen Regime ab, innerhalb dessen Transaktionskosten die Allokation maßgeblich bestimmen. Mit dem Coase-Argument ist dies ersichtlich, nicht aber mit dem...

We show that in a large class of distributed optimal control models (DOCM), where population is described by a McKendrick type equation with an endogenous number of newborns, the reproductive value of Fisher shows up as part of the shadow price of the population. Depending on the objective...

In many economic applications, the variate of interest is non-negative and its distribution is characterized by a mass-point at zero and a long right-tail. Many regression strategies have been proposed to deal with data of this type. Although there has been a long debate in the literature on the...

Transplants of donated stem cells save the lives of many patients with blood diseases. Donation is somewhat painful, but rarely has lasting adverse effects. Patients can accept transplants only from donors with compatible immune systems. Those lacking a sibling match must seek donations from the...

Understanding the influence of moral repugnance on social decisions is challenging, particularly because in several cases not all of the relevant policy options can be observed. In a series of recent studies, we designed survey experiments to identify individual preferences in morally...

Conventional theory holds that moral hazard - the additional health care purchased as a result of becoming insured - is an opportunistic price response and is welfare-decreasing because the value of the additional health care purchased is less than its costs. The theory of the demand for health...