noun
Academic term used in anthropology, sociology, and economics to describe mutual exchange of goods, services, or favors, often with social obligations. Compare 互酬性 (ごしゅうせい), which is more common for the abstract concept.
See also: 互酬性
互酬の原理は、贈与と返礼の循環を説明する。
The principle of reciprocity explains the cycle of gift-giving and return.
この社会では互酬が経済の基盤となっている。
In this society, reciprocity forms the foundation of the economy.