New public management marketizers versus Neo-Weberian state modernizers? Institutional configurations of social impact bond utilization among 18 OECD countries
研究18个OECD国家社会影响债券使用差异，发现高使用国家分为英美市场化和欧洲新韦伯主义两种模式，低使用国家则全为后一模式，说明改革工具在不同行政文化中适应性演变。
Social Impact Bonds (SIBs), a New Public Management (NPM)-style commissioning model, contain elements of other reform framings, widening their appeal and potential for variation in differing reform contexts. This study implements a fuzzy-set qualitative comparative analysis (fsQCA), seeking configurations explaining SIB uptake across 18 OECD countries. The two high-utilization configurations produce an Anglo-American model of NPM marketizers and a European model of Neo-Weberian State (NWS) modernizers, whereas the four low-utilization configurations include exclusively NWS modernizers and maintainers, suggesting SIBs as a fertile case study of public management reform tools adapting and trajectories merging in differing national administrative cultures and contexts.