Abstract: Nowadays, innovation is increasingly seen as the main driving force of economy. The industrial structure for employment structure changes significantly the formation of reconstruction in the process, pouring industrial labor services into the workforce as one of the main facts of employment structure changes characteristics. Similar to Lewis' dual economy, this paper tentatively calls the economic phenomenon new dual economy. Through practical considerations and the construction of the theoretical framework, it is found that the infinite labor supply hypothesis the service industry faces stand. It could be divided into core driven innovation, basal driven innovation, auxiliary driven innovation, which is used to explain the innovation’s driven progress of the new dual economic in detail. Then, the economy structure reconstruction effect of new dual economy is parsed, and summed up as condensed development of industry, expansionary development for the service industry, and the integrated development of agriculture. The new dual economic theory proposed in this paper is a beneficial discussion on the evolution of economic structure under the innovation-driven background of the fourth industrial revolution, and has some enlightenment for further understanding of the future industrial development.

摘要： 在以创新为主要驱动力的经济社会发展背景下，产业结构因就业结构显著变化将形成重构。在此过程中，工业劳动力大量流出、服务业劳动力大量进入成为就业结构变动的主要事实特征。因与刘易斯的二元经济类似，本文尝试性地将此经济现象称之为新二元经济。通过现实考量及理论架构的搭建，论证了服务业面临的无限劳动供给假设的成立。进一步地，将创新驱动划分为核心驱动、基础驱动、辅助驱动，细致详解新二元经济形成的创新驱动过程。继而，对新二元经济产生的经济结构重构效果进行解析，并归纳为工业的凝练式发展、服务业的扩张式发展、农业的融合式发展。本文提出的新二元经济理论是对第四次工业革命创新驱动背景下经济结构演化的一次有益探讨，对于深入认识未来产业发展有一定启示。