Reciprocal exchanges can also have a political effect through the creation of multiple obligations and the establishment of leadership, as in the gift exchanges (Moka) between Big Men in Melanesia.
Pertukaran timbal balik juga dapat memiliki efek politik melalui penciptaan beberapa kewajiban dan pembentukan kepemimpinan, seperti dalam pertukaran hadiah (Moka) di antara "orang-orang besar" di Melanesia.