[ **up: [[Marriage]]** ] --- # Exchange marriage [[2024-0730. An exchange marriage is a form of marriage involving an arranged and reciprocal exchange of spouses between two groups.|An exchange marriage is a form of marriage involving an arranged and reciprocal exchange of spouses between two groups.]][^1] [[2024-0730. Exchange marriage is most common in societies with a unilateral descent system and a consistent expectation of specified, family-related post-marital residence.|Exchange marriage is most common in societies with a unilateral descent system and a consistent expectation of specified, family-related post-marital residence.]][^1] [^1]: ‘exchange marriage’, *Encyclopaedia Britannica*, retrieved 30 July 2024, https://www.britannica.com/topic/group-marriage.