Abstract: Supply coordination model of two-suppliers and one-manufacturer based on different delivery policies is established.After analysis and description of agreed delivery date based on delivery window(called policy 1) and controllable delivery date based on cost sharing(called policy 2),the Stackelberg model of two-suppliers and one-manufacturer system based on agreed delivery date under delivery window is constructed,according to policy 1 and the optimal decision of each side.According to policy 2 the optimization and collaboration model of two suppliers and one manufacturer system,based on controllable delivety date under cost sharing mechanism,is built up,and the algorithm of optimal solution is given Then,range of the cost sharing coefficient is given after analysis of the situation that policy 2 is superior to policy 1,and the coordination policy of asymmetric Nash Equilibrium is put forward based on adapted ideal point Finally,the two delivery policies are compared and the sharing collabo rative policy is proved effective in numerical example.

Key words: delivery policy, two suppliers and one manufacturer, Stackelberg Game, Nash consultation