手法を比較

	Common-Pool Resource Analysis	Collective Action Analysis
分野	Political Economy	Political Economy
系統	MCDM	MCDM
提唱年	1990	1965
提唱者	Garrett Hardin & Elinor Ostrom	Mancur Olson & Elinor Ostrom
種類	Institutional analysis framework for shared resources	Formal model of group behavior
原典	Ostrom, E. (1990). Governing the Commons: The Evolution of Institutions for Collective Action. Cambridge University Press. ISBN: 9780521405997	Olson, M. (1965). The Logic of Collective Action: Public Goods and the Theory of Groups. Harvard University Press. ISBN: 9780674537514
別名	Commons Governance Analysis, Ostrom Design Principles, Tragedy of the Commons Analysis, CPR Analysis	Logic of Collective Action, Olsonian Collective Action Theory, Free-Rider Analysis, Group Size and Public Goods Theory
関連	4	4
概要	Common-pool resource (CPR) analysis is a framework for diagnosing why shared natural and man-made resources are prone to overuse and for identifying the institutional conditions under which user communities can govern them sustainably without privatization or top-down state control. A common-pool resource is rivalrous (one user's consumption subtracts from what is available to others) yet costly to exclude users from. Garrett Hardin's 1968 'tragedy of the commons' framed the pessimistic baseline in which rational appropriators collectively destroy the resource, while Elinor Ostrom's 1990 Governing the Commons established, through extensive empirical work, eight design principles that distinguish durable self-governing commons from those that collapse.	Collective action analysis explains why rational, self-interested individuals will often fail to act together to secure a common interest, even when every member of the group would benefit from doing so. In his 1965 The Logic of Collective Action, Mancur Olson overturned the prevailing assumption that groups with shared interests would naturally organize to advance them, showing instead that because the fruits of collective action are non-excludable public goods, each member has an incentive to free-ride on the efforts of others. The problem worsens as the group grows: large, latent groups chronically undersupply their collective good unless they offer selective incentives or coerce participation, while small, privileged groups can succeed. Elinor Ostrom's 1990 Governing the Commons later documented how communities craft durable institutions that solve such dilemmas without the state or privatization, earning her the Nobel Prize.