Shifting Constellations of Actors and Their Influence on Policy Diffusion: A Study of the Diffusion of Drug Courts

The existing studies of policy diffusion have paid insufficient attention to how policy actors in the macroenvironment of local jurisdictions influence the process of policy diffusion, what kind of mechanisms drive the interdependent spread of a policy, and how the diffusion process changes over time. We explore, both theoretically and empirically, the role different go‐betweens can play in policy diffusion, what kind of interactions take place between the micro level and macro level, and how shifts in the constellations of actors in the macroenvironment of a local jurisdiction can influence the mechanisms and rate of policy diffusion. Our empirical study of the diffusion of drug courts in four U.S. states demonstrates that there can indeed be significant interactions between the micro level and the macro level and that these interactions are likely to shape the diffusion process.