Extreme performance of resource exchange process in nonhomogenious open microeconomic system

Mathematical models of nonhomogenious open economic systems are considered. Nonhomogenious system is a system with several subsystems exchanging resources and working for the maximum profit. Examples of nonhomogenious systems are markets with dealers and competitive markets. For a number of nonhomogenious systems with different structures a problem on maximum extracted from the system profit are solved. Results are compared with the estimation of the profit made for a homogenious system.