Visualization is an important aspect of both exploration and communication of categorical as well as relational data. Graphical displays of policy networks are particularly attractive, since they enable authors to display in a compact way the relevant actors in a network, how they are related to...

This book suggests that the scope and breadth of regulatory reforms since the mid-1980s and particularly during the 1990s, are so striking that they necessitate a reappraisal of current approaches to the study of the politics of regulation. The authors call for the adoption of different and...

Die Studie bereichert die Politikanalyse mit neuen institutionellen und evolutionstheoretischen Ansätzen. In einer Untersuchung langfristiger organisationsstruktureller Entwicklungspfade im Telekommunikationssektor werden Konvergenzprozesse zu institutionellen Gleichgewichten herausgearbeitet....

Information exchange in policy networks is usually attributed to preference similarity, influence reputation, social trust and institutional actor roles. We suggest that political opportunity structures and transaction costs play another crucial role and estimate a rich statistical network model...

A promising theoretical perspective on the construction of order and change in the evolution of Large Technical Systems (LTS) is an ecological approach in the social sciences, inspired by various branches of biology and environ-mental sciences. In a multitude of variations, ecological approaches...