Analysis of information sources in references of the Wikipedia article "Establishment" in Portuguese language version.
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Those who are outsiders, in relation to a given establishment, as a rule, have on their part resources needed by the establishments' members.... Established and outsiders, in other words, have specific functions for each other. No established-outsider relationship is likely to maintain itself for long without some reciprocity of dependence.... Members of an establishment usually are very careful to maintain and, if possible, to increase the high dependence ratio of their outsider groups and thus the power differentials between these and themselves.
