Policy innovations and experiments have been considered a cornerstone of China’s economic rise in the past decades. However, the adoption of innovations by local governments is not always mandated by the central government, as one may expect in the case of a strong, centralised, and authoritarian state like China. Instead, higher-level governments often take a laissez-faire approach and merely sponsor some innovations without actively getting involved in the process of adoption. In our recent article in Policy & Politics, we aim to answer the question of why higher-level governments intervene proactively in local innovations in some cases but only offer their backing in others. Continue reading →
I conducted a meta-review of policy diffusion studies that focus on the American states. By casting a wide net using Google Scholar and Web of Science, I identified all (to my knowledge) studies published between 1990 and 2018 that referred to “policy diffusion” and “berry and berry.” Berry and Berry are important because their 1990 study of state lotteries introduced the unified model of policy diffusion. Essentially, this model combined the internal characteristics of states with influences external to the states to explain policy adoption. Over time, scholars also recognized that the attributes of the policy innovations themselves condition how far and how quickly they spread. Continue reading →
This quarter’s highlights collection focusses on the popular theme of policy diffusion, bringing new analyses offering fresh perspectives on this extensive area of scholarship.
In our first featured article on policy diffusion, Daniel Mallinson continues his efforts in offering the most comprehensive analysis to date on how policy innovation diffuses across American states. Although hundreds of articles have tackled the fundamental question of why innovative policies spread, none has fully grappled with the scope of their disparate results.
To fill that gap, this article presents a state-of-the-art systematic review and meta-analysis of how policy innovation flows from US state to US state and the average effects of commonly used variables in the study of policy diffusion. In doing so, it highlights important biases in the research and makes recommendations for addressing those biases and increasing international collaboration on policy innovation research and results. Continue reading →
As recently as last week, Stand Your Ground (SYG) laws wereusedto Statesjustify killingas self-defense.In Georgia, three young men were shot and killed in what is being called an attempted murder. In the most well-known SYG case,George Zimmerman claimed self-defense in the murder of Trayvon Martin in Florida in 2012.
Florida was one of the first states to pass Stand Your Ground or No Duty to Retreat legislation in 2005. SYG legislation then spread rapidly to many states throughout the country. Research shows a significant increase in murder rates in states with Stand Your Ground laws. Our research showed that SYG laws passed after Florida’s were not only similar in content, but almost textually identical from state to state. We investigated this phenomenon further in our recent Policy & Politics article entitled “The Role of Super Interest Groups in Public Policy Diffusion” Continue reading →