Usually, groups increase their productivity by the specialization of their group members. In these cases, group output is no longer simply a sum of individual outputs. We analyze contests with group-specific public goods that allow for different degrees of complementarity between group members'...

The present paper analyzes situations in which groups compete for rents. A major result in the literature has been that there are both cases where larger groups have advantages and cases where they have disadvantages. The paper provides two intuitive criteria which for groups with homogenous...

Usually, groups increase their productivity by the specialization of their group members. In these cases, group output is no longer simply a sum of individual outputs. We analyze contests with group-specific public goods that allow for different degrees of complementarity between group...

The present paper analyzes the occurrence of the group-size paradox in situations in which groups compete for rents, allowing for degrees of rivalness of the rent among group members. We provide two intuitive criteria which for groups with homogenous valuations of the rent determine whether...

Die folgende Dissertation hat zwei Teile. Das Thema des ersten Teils ist die Rolle von Freiheit in normativer und positiver Ökonomik. Dieser Teil beschäftigt sich mit Fragen, wie: "Wie kann man Freiheit in ökonomischen Modellen messen?", "Wie kann man Institutionen schaffen, die Individuen...

The present paper analyzes situations in which groups compete for rents. A major result in the literature has been that there are both cases where larger groups have advantages and cases where they have disadvantages. The paper provides two intuitive criteria which for groups with homogenous...

Usually, groups increase their productivity by the specialization of their group members. In these cases, group output is no longer simply a sum of individual outputs. We analyze contests with group-specific public goods that allow for different degrees of complementarity between group...

The paper axiomatizes a freedom measure based on the idea that an agent is free if she can causally influence relevant aspects of her life. To model this, causal networks are employed. It is shown that the measure is a generalization of several opportunity set based measures. The measure solves...