本文构建了最终品和中间品种类不断变化的动态一般均衡模型,探讨市场规模、劳动分工和内生增长之间的关系,并且分析了内生增长理论与Young的区别。本文的研究表明,即使没有研发,劳动分工也会内生增长,内生增长的机制在于启动“劳动分工深化—市场规模扩大—劳动分工更加深化”的自我持续过程。本文构建的模型清晰地表明,内生增长理论在内生增长的源泉和机制方面与Young的不同。这具有重要的现实意义,按照内生增长理论,要实现长期增长只需要增加专利数目即可,而按照本文构建的模型和Young的思想,要实现长期增长关键在于增加符合市场需求的专利数目,从而可以启动劳动分工与市场规模不断深化的自我持续过程。 This paper constructs a dynamic general equilibrium model with varying types of final products and intermediate products, discusses the relationship between market size, division of labor and endogenous growth, and analyzes the difference between endogenous growth theory and Young. The research in this paper shows that even without research and development, the division of labor will endogenously increase. The mechanism of endogenous growth is to initiate the process of self-sustaining “deepening the division of labor, expanding the market scale and deepening the division of labor.” The model built in this paper clearly shows that endogenous growth theory is different from Young in terms of the sources and mechanisms of endogenous growth. This has important practical significance. According to endogenous growth theory, long-term growth requires only increasing the number of patents. According to the model and Young’s idea, the key to achieving long-term growth lies in increasing the number of patents that meet market demand, Which can start the process of division of labor and deepening market size of self-sustaining process.