Social capital and interlocal service collaboration in US counties
研究了美国县级政府的社会资本（特别是普特南式组织）与跨地方服务合作的正向关联，使用工具变量法处理内生性，发现社会资本能解释15.8%的跨地方合作差异。
Social capital and interlocal service collaboration in US counties. Regional Studies. Local governments are increasingly faced with public policy problems that span across their individual jurisdictional boundaries. Interlocal service collaboration has been suggested as a preferable alternative to address these issues. This study examines the association between collective social capital, especially focusing on Putnam-type organizations and interlocal service collaboration, by investigating the interlocal revenues at the county level for the fiscal year 2002 in the United States. An instrumental variables estimator to address a potential endogeneity problem of social capital was adopted. The results show that social capital is positively associated with interlocal service collaboration. Further analysis revealed that 15.8% of counties’ variation in interlocal service collaboration was attributed to the state level.