Closed communities

Nature

A closed community intentionally limits links with outsiders and outside communities. Closed communities may be of a religious, ethnic, or political nature. Governance of closed societies varies. Typically, members of closed communities are either born into the community or are accepted into it. The opposite of a closed community is an open community, which maintains social relations with external communities.

Source: Wikipedia

Broader 
Value(s) 
Type 
(G) Very specific problems