企业集团内部成员企业之间，应不应当鼓励和支持相互竞争，这不仅是一个理论问题，而且是一个关系到中油集团未上市企业乃至整个集团公司改革和发展取向的大问题。 新制度经济学的创始人科斯在《企业的性质》一文中提出：企业最显著的特征在于它是价格机制的替代物。”企业取代 It is not only a theoretical issue, but also a major issue that concerns the reform and development orientation of the unlisted enterprises of CNPC and even the entire group of companies. Coase, founder of New Institutional Economics, put it in his article “The Nature of Business,” that the most striking feature of an enterprise is that it is a substitute for the price mechanism. "Enterprise replaced