Community management or common-pool resource management is the management of a common resource or issue by a community through the collective action of volunteers and stakeholders. The resource managed can be either material or informational. Examples include the management of common grazing and water rights; fisheries and open source software. In the case of physical resources, community management strategies are frequently employed to avoid the tragedy of the commons and to encourage sustainability.
Common pool problem 
Without proper management, a community's material resources may be depleted or rendered unusable. The common pool problem is an economic situation which exists when goods are rival, but non-exclusive (See common-pool resource). Since these resources are owned in common, individuals have no private incentive to preserve them, but rather will seek to exploit them before others can derive benefit. The classic example is of fish in the ocean. Anybody can harvest fish, but a fish that has been caught cannot be caught by another fisherman. Therefore fishermen will seek to maximize their personal profit by catching as many fish as possible, which will ultimately lead to the stock being depleted. It is similar to the free rider problem in that those who do not contribute to the resource may use it without penalty, but the common pool problem is usually considered an economic "problem" since it will eventually lead to the exhausting of a resource. Yet another example of the common pool problem involves the shared use of limited internet bandwidth, such as in a university network, when the connectivity of all users is slowed by the heavy usage of a few.
Elinor Ostrom and Oliver E. Williamson won the 2009 Nobel prize in economic science for work in this area, where they suggested that with good community management of shared resources, as found in successful firms, the "tragedy of the commons" can be avoided.
The creation of open source software projects or other open collaborative projects, such as Wikipedia generally require some form of community management, whether it involves leadership or egalitarianism. Unlike as is the case with physical resources, the sharing of information does not necessarily deplete the resource. Nonetheless proper management may be necessary to encourage a network effect, where collaborative use actually enriches the resource, and to avoid conflict.
Methods of management 
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A community may itself be actively developed and managed in order to promote communal activity and welfare.
See also 
- R Wade (1987), "The management of common property resources", Cambridge Journal of Economics
- R. S. Pomeroy (1994), Community management and common property of coastal fisheries in Asia and the Pacific
- SO'Mahony (2007), "The governance of open source initiatives: what does it mean to be community managed?", Journal of Management and Governance (subscription required)
- Camille Antinori and Gustavo A. Garcia-Lopez Cross-Scale Linkages in Common-Pool Resource Management: The Evolution of Forest Associations in the Mexican Forest Commons. Prepared for the 12th IASC 2008 Biennial Conference, University of Gloucester, Cheltenham, England, U.K.
- Holahan, William L., Schug, Mark C.; Conservation of resources and the common pool problem; Social Studies; Nov/Dec97, Vol. 88 Issue 6, p264, 4p, 1 chart; 
- Editorial (2009-10-12). "Nobel insights". The Financial Times. Retrieved 2010-09-12.
- Stephen R. Barber (2008), Community Associations: A Guide to Successful Management