Advancing the operationalization of national policy styles

While national policy styles have (re)gained academic attention in recent comparative public policy work, the concept still needs a widely accepted operationalization that can allow the collection and analysis of data across contexts while steering away from construct validity threats. We build on Tosun and Howlett's (2022) work and employ a mixed-methods approach, which relies on exploratory factor analysis and hierarchical cluster analysis. We put forth an operationalization, using Bertelsmann's Sustainable Governance Indicators (SGI) as proxies, that achieves conceptual clarity and distinctiveness, informational robustness, and statistical power. Ultimately, we construct two composite indicators—mode of problem-solving and inclusiveness—calculate them in 41 countries and present policy style classifications based on their combinations. We report the distribution of countries across four policy styles (administrative, managerial, accommodative, adversarial) and conclude with an analysis of the clusters, assessments of robustness, and comparison with other national policy style classification schemes.