Ostrom solved the tragedy of the commons

See this article. It reiterates a point I've made recently too: "Groups are capable of avoiding the tragedy of the commons without requiring top-down regulation," as long as they maintain certain principles. And that said principles were tailored to the requirements of autonomous locales in their own specific context. At the 2nd link I said:

"Whereas the technology that enables it [the collaborative commons] to grow organically has no apparent need of this top down imposition. [...] While the principles are consistent across cooperatives, there are differences in how those principles are enacted given different locations and contexts. There really is no "one size fits all" model across all domains."