Policy Diffusion: Seven Lessons for Scholars and Practitioners Nov 30, 2012 By Craig Volden Policy Diffusion: Seven Lessons for Scholars and Practitioners Policy Diffusion: Seven Lessons for Scholars and Practitioners The scholarship on policy diffusion in political science and public administration is extensive. This article provides an introduction to that literature for scholars, students, and practitioners. It offers seven lessons derived from that litereature, build from numerous empirical studies an applied to contemporary policy debates. Based on these seven lessons, the authors offer guidance to policy makers and present opportunities for future research to students and scholars of policy diffusion. Download PDF Craig Volden Craig Volden is a professor of public policy and politics, with appointments in the Frank Batten School of Leadership and Public Policy and the Woodrow Wilson Department of Politics. He studies legislative politics and the interaction among political institutions, including within American federalism. Read full bio Related Content Craig Volden Spatial Models of Legislative Effectiveness Research Spatial models of policymaking have evolved from the median voter theorem through the inclusion of institutional considerations such as political parties, committees, and various voting and amendment rules. Such models, however, implicitly assume that no policy is more effective than another at solving public policy problems and that all proposers are equally capable of advancing proposals. Party Calls and Reelection in the US Senate Research Minozzi and Volden advance the idea that a substantial portion of partisan voting activity in Congress is a simple call to unity that is especially easily embraced by ideological extremists. If correct, Minozzi and Volden’s findings should extend from the House to the Senate, despite differences in institutional structures and in tools at the disposal of party leaders across the two chambers. Scoring Effectiveness in Congress News What makes someone an effective lawmaker? Surprisingly, until Batten’s Craig Volden and Vanderbilt’s Alan Wiseman began discussing that question a little over a decade ago, we didn’t have a clear answer. Coronavirus policies spread quickly across the U.S. Are cities and states learning — or just copying? News As the novel coronavirus has spread across U.S. cities and states, so have public policies aimed at stopping the pandemic. Batten's Craig Volden and co-author Charles R. Shipan examine how some states have learned from others’ policy successes, while others simply copy their neighbors or even compete against them, and why that matters.