十八届三中全会提出“积极发展混合所有制经济”是中国社会主义经济体制改革的一项重大宏观政策。而把它简单理解为通过行政手段在大型国企中混入私有资本的概念(以下简称“资本混合型企业”)不仅张冠李戴,而且这种概念本身存在诸多科学性问题。首先,从现代市场经济理论和实践看,混合所有制经济(Mixed Economy)指在一个经济制度中不同所有制形式的经济实体(企业)共同存在(Pollin,2007;Reisman, The Third Plenary Session of the 18th CPC Central Committee Proposed “Actively Developing Mixed Ownership Economy” is a major macro-policy for the reform of China’s socialist economic system. However, it is simply understood that the concept of mixing private capital into large state-owned enterprises through administrative means (hereinafter referred to as “capital mixed enterprise”) is not only flawed, but also has many scientific problems in its concept itself. First of all, from the perspective of modern market economy theory and practice, Mixed Economy refers to the co-existence of economic entities (firms) with different types of ownership in an economic system (Pollin 2007; Reisman,