reciprocity

 
Pronunciation: /ˌrɛsɪˈprɒsɪti/

noun

[mass noun]
  • the practice of exchanging things with others for mutual benefit, especially privileges granted by one country or organization to another: the Community intends to start discussions on reciprocity with third countries

Origin:

mid 18th century: from French réciprocité, from réciproque, from Latin reciprocus 'moving backwards and forwards' (see reciprocate)