Appearing in Tilly’s book “Why”:
Effective commons goverance is easier to achive when (i) the resources and the use of the resources by humans can be monitored, and the information can be verified and understood at relatively low cost (e.g. trees are easier to monitor fish, and lakes are easier to monitor than rivers); (ii) rates of change in resources, resource-user populations, technology, and economic and social conditions are moderate; (iii) communities maintain frequent face-to-face communication and dense social networks – sometimes called social capital – that increase the potential fo trust, allow people to express and see emotional reactions to distrust, and lower the cost of monitoring behavior and inducing rule compliance; (iv) outsiders can be excluded at relatively low cost from using the resources (new entrants add to the havested pressure and typically lack understanding of the rules); and (v) users support effective monitoring and rule enforcement.
That sentences is from “The Struggle to Govern the Commons” (pdf). Very interesting how poor the match is between that list and the situation with Open Source.