论二元经济结构的转化趋向

A Study on the Transform Tendency of Dual Economic Structure

促使二元经济结构转化是发展中国家经济发展的一个关键,然而,现有文献不能为经济结构的转化趋向提供有说服力的解释,这影响了人们对二元经济问题的认识及转化路径的选择。本文认为二元经济反差源于两部门不同的分工水平,结构转变的趋向必须在分工演进的视角下才可能得到解释。基于此,本文构建了一个新兴古典经济学模型,证明了随着分工组织的演进和分工水平的提高,二元经济结构转变体现为一个工业化,以及在此基础上的服务业的兴起和城市化水平提高的过程,而促使分工演进的关键是交易效率提高,或者说交易费用降低,理论推导的命题能够得到经验数据的支持,这样就内在一致地解释了二元经济结构在产业和空间等方面的转化趋向。

The transformation of dual economic structure is a crucial point of the economic development in developing countries, but the exsiting literature cann＇t display the transform tendency of dual structure in theory. The paper consider that dual economic lies in the difference in level of labor division of two sectors, and the transform tendency of dual structure should be explained from the viewpoints of labor division. According to the above judgement, the paper take advantage of New Classical Economics models, and conclude that with the improvement of labor division, the transform trend of dual structure is industrialization, the prosperity of service industry and the development of urbanization. The improvement of labor division is decided by the transaction efficiency or the transaction cost. These theoretic viewpoints can be supported by empirical evidence, so we have explained the transform tendency of dual structure in theory and in practice consistently.