后发地区要实现由高投入、低产出的传统经济增长方式,跃变到基于知识溢出的内生经济增长,创新战略选择十分关键。本文在国内外综述的基础上,基于基本假设,引入原创性创新与模仿性创新在技术与市场驱动上所体现出的基于成本差异的投入产出效率差别,建立原创性创新驱动经济内生增长的理论模型,并对珠三角地区9市的经济增长方式驱动因素进行计量分析。理论与实证表明:(1)一个区域经济内生增长不仅取决于知识溢出、技术进步等因素,同时,还存在创新投入产出的效率问题。(2)欠发达地区与发达地区的技术差异缩小到一定程度时,采用何种创新模式,提升创新效率,避免陷入经济“非收敛”增长的陷阱显得十分关键。(3)模仿性创新对珠三角地区经济增长方式转变的影响较显著,资本投入对产业结构优化呈现正面影响,但资本投入与劳动力投入对产业国际竞争力呈现负面影响,这表明珠三角地区的经济增长方式内生驱动力主要为模仿性创新或要素驱动,而非原创性创新。本文的初步研究有助于国内各地区把握住原创性创新战略的选择,对于新常态下,经济增长动力的转换实践具有一定指导意义。

In the late-developing areas, it is very important to realize the strategic choice of high-input and low-output traditional economic growth mode, which is based on knowledge spillovers and endogenous economic growth. Based on the domestic and international review and basic assumptions, this paper introduces the differences of input generation efficiency based on the cost difference between the original innovation and the simulation innovation in the technology and market drive, and establishes a theoretical modal where the original innovation drives the economic endogenous growth. The econometric methods of economic growth in the Pearl River Delta region are analyzed. The theoretical and empirical results show that: 1) The endogenous growth of a regional economy depends not only on factors such as knowledge spillovers and technological advances, but also on the efficiency of innovation input and output; 2) When the technological differences between underdeveloped regions and developed regions are reduced to a certain extent, it is crucial to adopt what kind of innovation model to improve innovation efficiency and avoid falling into the trap of economic “non-convergence” growth; 3) Imitation innovation has a significant impact on the transformation of economic growth mode in the Pearl River Delta region. Capital investment has a positive impact on the optimization of industrial structure, but capital investment and labor input have negative impact on the international competitiveness of the industry, indicating that the endogenous driving force of economic growth is mainly imitative innovation or factor-driven rather than original innovation in the Pearl River Delta region. The preliminary research of this paper helps domestic regions grasp the choice of original innovation strategy, which has certain guiding significance for the transformation practice of economic growth momentum in the new normal of China’s economy.