The quality of correlation; reciprocation; interchange; interaction; interdependence.

Reciprocity of consideration.

a reciprocality of sentiments; "the mutuality of their affection was obvious"

Method where a person bounces two or more weak and unclear entities off against each other and forms a pattern that is not only much greater than the sum of its (two or more) parts, but in which the parts themselves become clearer and stronger, as the overall pattern is clarified. Back to Creativity Page

The binding of both parties in every contract.

The concept that a contract, to be enforceable at all, must be enforceable by both parties.

Where an organisation is owned by its members without outside shareholders. Net After tax has been deducted.