Prescribed by law and therefore realized? Analyzing rules and their implied actor interactions as networks

Managing environmental problems requires cross- sectoral and cross- level collaboration among actors. Scholars of institutional arrangements investigate how rules shape such collaboration. Scholars of the Advocacy Coalition Framework (ACF) look for explanations for collaboration in actors' values and beliefs. Rarely have these two factors been considered together when studying collaborative behavior. This paper considers institutional arrangements and actor values to examine the structure and potential drivers of actor collaboration. The study combines the Institutional Analysis and Development framework and the ACF, applying social network analysis to explore an interaction network prescribed by rules and a surveyed collaboration network. It tests the influence of actor beliefs, reputation, and institutional arrangements on collaboration investigating water management in the German Ruhr catchment. The study finds that perceived power and actor beliefs explain actor collaboration better than institutional arrangements and that perceived interactions are more diverse and denser than hierarchically structured networks of prescribed interactions.