Elinor Ostrom's 8 Principles for Managing A Commmons page 
> Elinor Ostrom shared the Nobel Prize in Economics in 2009 for her lifetime of scholarly work investigating how communities succeed or fail at managing common pool (finite) resources such as grazing land, forests and irrigation waters. On the Commons is co-sponsor of a Commons Festival at Augsburg College in Minneapolis October 7-8 where she will speak.
Elinor Ostrom
Ostrom’s achievement effectively answers popular theories about the “Tragedy of the Commons”, which has been interpreted to mean that private property is the only means of protecting finite resources from ruin or depletion. She has documented in many places around the world how communities devise ways to govern the commons to assure its survival for their needs and future generations.
A classic example of this was her field research in a Swiss village where farmers tend private plots for crops but share a communal meadow to graze their cows. While this would appear a perfect model to prove the tragedy-of-the-commons theory, Ostrom discovered that in reality there were no problems with overgrazing. That is because of a common agreement among villagers that one is allowed to graze more cows on the meadow than they can care for over the winter—a rule that dates back to 1517. Ostrom has documented similar effective examples of “governing the commons” in her research in Kenya, Guatemala, Nepal, Turkey, and Los Angeles.
# See also * Ostrom's 8 Principles * Beyond Markets & States