Essential Concepts of Global Environmental Governance pages:152-154
Policy diffusion describes the process through which policies spread amongst a group of jurisdictions or even globally. It can be observed at and across different levels of governance, from the local to the global. Authors distinguish several causal mechanisms and a number of scope conditions. Mechanisms describe a sequence of events that explains how one policy triggers or influences a policy change in another jurisdiction. Whereas the number and types of mechanisms differ between studies, a growing consensus on coercion, competition, learning and emulation has emerged. This chapter provides an overview of policy diffusion research in global environmental governance.