本文将微观经济僵化和技术采用联系在一起,以对不同国家之间人均收入的明显差异进行部分解释。文章首先给出一个包含异质性生产单位的新古典主义一般均衡模型。该模型假设,发展中国家不会发明前沿技术,但可以通过对新资本的投资来利用这些技术,而这需要企业创新。该模型分析了这一过程如何受到进入新项目和退出过时项目的相应障碍的影响。 This article links the microeconomic rigidity to technology adoption to explain in part the significant differences in per capita income among different countries. The article first gives a neoclassical general equilibrium model that includes heterogeneous units of production. The model assumes that developing countries will not invent cutting-edge technologies, but they can use these technologies through investments in new capital, which requires business innovation. The model analyzes how this process can be affected by the corresponding barriers to entering new projects and exiting outdated projects.