The European Administrative Networks (EANs) have increasingly been recognized as important instruments for improving implementation and compliance of European policies. As these structures foster processes such as exchange of experiences and advice, information sharing and development of best practices, they contribute to an ongoing process of mutual learning. Informal networks, in particular, were identified as conducive environments to learning as a result of their openness, trust-building and non-hierarchical orientation. While several studies have inquired whether learning actually takes place, few have approached the micro-dynamics that lead to mutual understandings and knowledge acquisition. This paper examines this question through an empirical analysis of the Head of Environmental Protection Agencies Network (EPA Network). Based on an unique survey dataset and participation records in the networks’ documents, social network analysis is used to trace the interaction patterns within the network, evidencing the way in which knowledge circulates. This paper sheds further light on the intra-network relationships between European regulatory authorities and on the functionality of EANs to the regulatory practice in the EU.
