This special issue about sectoral governance in the shadow of hierarchy focuses on two sets of questions. Firstly, do new modes of sectoral governance in themselves contribute to the efficacy of policymaking or do they require the shadow of hierarchy, i.e. legislative and executive decisions, in order to deal effectively with the problems they are supposed to solve? And, secondly, what are the institutional links between sectoral governance and territorially bounded democratic governments? How do different links contribute to the efficacy of policymaking and how do they change over time? Is there a retreat of government from policymaking and a corresponding increase of sectoral governance, or just the opposite?