Die Qualität von Lebensmitteln - insbesondere im Hinblick auf die Güte der Inhaltsstoffe und die Herstellungsart - ist von Verbrauchern nur schwer überprüfbar. Um die Glaubwürdigkeit von Qualitätsversprechen zu erhöhen und die Unsicherheit in der Beziehung zwischen Herstellern und...

The paper investigates firms' behavior and outcomes (levels of cost-reducing R&D, output, profit and welfare in equilibrium) in a differentiated duopoly with process innovation. One of the important features in this paper is that spillovers operate in the R&D stage and are tied to the degree of...

Two insurance companies I 1 ,I 2 with reserves R 1 (t),R 2 (t) compete for customers, such that in a suitable differential game the smaller company I 2 with R 2 (0)<R 1 (0) aims at minimizing R 1 (t)&#x2212;R 2 (t) by using the premium p 2 as control and the larger I 1 at maximizing by using p 1. Deductibles K 1 ,K 2 are fixed but may be different. If K 1 >K 2 and I 2 is the leader choosing its premium first, conditions for Stackelberg equilibrium are established. For gamma-distributed...</r>