coalitions, where the concurrent exchange of commodities and information is realized. So, in the course of a natural exchange … chain of coalitions implemented in the process of interaction between economic agents. …

A new concept of contract-based domination by coalitions for competitive economies is proposed and studied in the paper …. This concept is based on the notion of (barter) contract (an elementary exchange of commodities). Here classical coalitions … allows to describe various known classical concepts for a perfect economy – equilibria, core, fuzzy core etc. – in pure game …