“中心约定”理论,约定是合作的前提,硬约定是有效可控的合作模式,软约定不可控,效率低。运用“中心约定”理论对中国的铸造企业体制模式的分析表明:私企和股份制企业是现存有效率的体制模式。根据“中心约定”理论,建议两种更为有效的企业体制模式:全员股份制和全员董事会制,尤以全员董事会制更为有效。 “Center agreement ” theory, the agreement is the premise of cooperation, the hard agreement is an effective and controllable cooperation mode, soft contract uncontrollable, inefficient. The analysis of China’s foundry enterprise system model using the “center agreement” theory shows that: private-owned and joint-stock enterprises are the existing and efficient institutional mode. According to “center agreement ” theory, suggest two more effective enterprise system mode: full shareholding system and full board system, especially full board system more effective.