We seek explanations for the prevalence of network health insurance combined with primary care. In our model, diagnosis and treatment are separately provided, and diagnostic information processing is layered: a patient's health status is first assessed by a general practitioner and then...

We introduce a model of bargaining among groups, and characterize a family of solutions using a Consistency axiom and a few other invariance and monotonicity properties. For each solution in the family, there exists some constant alpha = 0 such that the "bargaining power" of a group is...

The bounded core is the set of allocations that are not improved upon by any bounded set of agents. The authors submit that the bounded core does not serve as a criterion for the efficiency of allocations in an overlapping generations economy, for it may include allocations that are not even...

Nach intensiven Debatten über die Mängel der gegenwärtigen Fusionskontrolle hat die Europäische Kommission den Entwurf einer Reform vorgelegt. Darin wird insbesondere auch über die Einführung einer so genannten Effizienzverteidigung nachgedacht. Die Autoren analysieren, wann eine...