Abstract The article elaborates the basic structure of the exchanged cost economics —— the main stream in the study of the system economics,focusing on the analytical methods of the system and its difference from that of the marketing contract economics,advocating the concept “contract person”:the thearetic modual for the exchanged cost economics against the concept “economic person”;
Then, this paper constructs the following theory model:being contract man, the micro financial main bodies proceed withfinancial transactions. The costs of financial transactions leadto a seriesfinancial property arrangement: financial organization, financialpolicies, financial contracts, financial market structure etc. Thefinancial property arrangements evolve from primary state tomaturestate.