Abstract
The market mechanism which is basic thought of economics is not complete, but the effectiveness is acknowledged. In economics actual problems were researched mathematical approach as a center, but abstraction you must do the economic model which does not have solution, it has the weak point. Recently precision is raised in even numerical solution of the complex system with the improvement of rapid calculation ability. The way which applies the result of IT to the optimization of the economic system is searched. We propose improvement method which is called to the IT solution "Market Economy Method".
