Various articulations of "design principles" for a commons, hopefully inspirational to others:
From Ted Bergstrom:
Ostrom attempts to identify common features of societies and institutions that promoted their efficacy and survival. She enumerates these "Design Principles Illustrated by Long-Enduring CPR institutions" as follows.
- Clearly defined boundaries, defining who can withdraw common re-sources and who cannot. This feature makes the resources ”commonproperty” of insiders but does not allow “open access” to outsiders.
- Appropriation rules that restrict time, place, technology, and/or quan-tity of resources withdrawn, where these rules are tailored to localconditions.
- Collective choice rules that allow most individuals affected by rules toparticipate in any modification of these rules.
- Monitoring of compliance, where the monitors are accountable to thelocal resource appropriators. Self-enforcement by group members is acritical feature of most successful solutions. Usually this works betterthan attempts to enforce rules passed by a an outside government thatis ill-equipped to enforce these rules.
- Graduated sanctions for non-compliance, where the severity of sanc-tions depend on the severity and context of the offense.
- Access to rapid, low-cost arenas to resolve conflict among uses andbetween users and officials.
- Minimal recognition of the right to organize by a national or localgovernment.
- For larger common pools, the presence of governance activities orga-nized in multiple layers of nested enterprises.
- This list appears in her 1990 book  (page 90) and also in her Journal of Economic Perspectives article .