Since the early 1990s, public networks have been implemented in many countries to solve ‘wicked’ public problems, addressing such issues as health, social care, local development and education. While considerable research has been carried out into public networks, both managers and scholars are left with some doubts about network effectiveness. In fact literature on this topic has been highly fragmented, comprising a plurality of definitions, multiple theories, multiple methods and multiple explanations. This paper aims to review and classify previous theoretical and evidence-based studies on network effectiveness and its determinants. Our aim is to rearrange existing literature into a unitary framework in order to shed light on both hitherto unfilled gaps and established theoretical cornerstone