Abstract
In this article, we demonstrate the applicability of a 3-I (interests, institutions, and ideas) framework to alcohol policy research. The analysis uses literature from political science research to provide a core theoretical framework. To help illustrate the argument, we draw on relevant examples from alcohol policy in the UK as well as initial findings from an ongoing research study on minimum-unit pricing in Wales. The Welsh case study provides an opportunity to examine the value of the framework in generating testable hypotheses in alcohol policy research. We find that several interrelated factors promoted policy change in Wales, including the government's power to legislate on matters of public health (institutionally), a relatively weak alcohol industry (a key interest group), and a public health community with specific policy arguments on why and how to tackle alcohol-related harms (ideas). Our analysis has important implications for public health research and evidence-based policymaking. It suggests that the uptake of new ideas depends on the existing configuration of interests, institutions and ideas. This analysis provides alcohol policy researchers with a portable framework for analysing the policy context.