Abstract: This paper studies the competition, cooperation and coordination of polysilicon photovoltaic supply chain.The result shows that, (1) the profit of PSM (Photovoltaic System Manufacturer) is higher in PSM cooperation than in competition; (2) the profit of PM (Polysilicon Manufacturer) is higher in PSM competition than in cooperation; (3) the profit of the channel is higher in PSM competition than the cooperation; (4) adopting an improved revenue sharing contract coordination mechanism can improve the profit of the whole channel, as well as each PSM and PM.Therefore, it is suggested that we can improve the performance of polysilicon photovoltaic supply chain by building profit sharing coordination mechanism, and coordinating PM and PSM in the channel.

Key words: polysilicon photovoltaic supply chain, competition, cooperation, coordination