in return, the giver is entitled to a woman from the other's intimate kinship group. Thus the negative prescriptions of the prohibition have positive counterparts. The idea of the alliance theory is thus of a reciprocal or a generalized exchange which founds affinity, just as economic exchange due to the division of labour resulted in organic solidarity. This global phenomena takes the form of a "circulation of women" which links together the various social groups in one whole: society. Lévi-Strauss emphasizes this a system of generalized exchange based on indirect reciprocity. A generalized system does not involve a direct or balanced dyadic exchange and hence presupposes an expansion of trust. See also Generalized exchange Gift economy Bushmen, whose system of generalized reciprocity ended with the influence of the Western civilization. Economic anthropology Iroquois economics – an example of symmetrical reciprocity Reciprocity (social psychology) Bronisław Malinowski Social preferences References Cultural anthropology Community building