rec·i·proc·i·ty 
/ˌrɛsəˈprɑ:səti/ noun
/ˌrɛsəˈprɑ:səti/ noun [noncount] formal : a situation or relationship in which two people or groups agree to do something similar for each other, to allow each other to have the same rights, etc. : a reciprocal arrangement or relationship
▪ The proposal calls for reciprocity in trade relations.
▪ The proposal calls for reciprocity in trade relations.
