手法を比較

	Policy Network Analysis	Institutional Analysis and Development Framework
分野	Public Policy	Public Policy
系統	Process / pipeline	Process / pipeline
提唱年	1992	2005
提唱者	R. A. W. Rhodes & David Marsh (British school); broader governance-network tradition	Elinor Ostrom & the Bloomington School
種類	Analysis of inter-organisational policy relationships	Framework for analysing institutions and collective action
原典	Marsh, D., & Rhodes, R. A. W. (Eds.) (1992). Policy Networks in British Government. Oxford: Clarendon Press. ISBN: 9780198278528	Ostrom, E. (2005). Understanding Institutional Diversity. Princeton, NJ: Princeton University Press. ISBN: 9780691122380
別名	Policy Networks, Governance Network Analysis, Policy Network Approach	IAD, IAD Framework, Ostrom IAD Framework
関連	4	4
概要	Policy network analysis examines policymaking as the product of relationships among interdependent actors — government agencies, interest groups, experts and others — who exchange resources such as information, money, legitimacy and authority. In the influential British tradition associated with R. A. W. Rhodes and David Marsh, policy networks range along a continuum from tightly knit, exclusive 'policy communities' to loose, open 'issue networks', and the type of network is held to shape policy outcomes. More broadly, the approach applies the concepts and tools of social-network analysis to governance, treating the structure of ties among actors as a key explanatory variable.	The Institutional Analysis and Development (IAD) framework is a general framework for analysing how institutions — the rules, norms and shared strategies that structure human interaction — shape behaviour and outcomes. Developed by Elinor Ostrom and colleagues at Indiana University's Bloomington School over several decades and synthesised in her 2005 book Understanding Institutional Diversity, it places an 'action situation' at its centre: a structured setting in which actors interact, influenced by biophysical conditions, community attributes and rules-in-use. The framework was central to Ostrom's Nobel-winning work on how communities govern common-pool resources without privatisation or top-down state control.