一、市场体系内核动力系统存在的理论依据(一)市场体系形成的基本过程美国自进入资本主义社会以来,其市场体系的形成大体经历了以下四个阶段:第一个阶段,是市场体系的萌芽阶段。这个阶段在资本主义制度确立初期,它的主要特点是以发育实物形态市场为主。实物形态市场是市场体系发育的萌芽及市场体系中其它组成部分产生的条件和基础。第二个阶段,是市场体系基本形成阶段。它以1892年芝加哥期货商品交易所形成为主要标志。这个阶段的主要特点是以发展非实物形态市场为主。常见的非实物形态市场有科技市场、劳动力市场、金融市场、信息市场、证券市场等。非实物形态市场一方面以实物 I. Theoretical Basis for the Existing Nuclear Power System in the Market System 1. The Basic Process of Market System Formation Since the United States entered the capitalist society, the formation of its market system has generally gone through the following four stages: In the first stage, the market system Germination stage. This stage in the initial establishment of the capitalist system, its main feature is to develop the physical form of the market-based. The physical market is the embryo of the market system and the conditions and foundations of the other components of the market system. The second stage is the basic stage of market system. It was formed as the main symbol of the 1892 Chicago Board of Trade. The main feature of this stage is the development of non-physical forms of the market-based. Common non-physical forms of market science and technology market, labor market, financial markets, information markets, securities markets. Non-physical market on the one hand, in kind