经济学院知识库

党的二十大报告指出共同富裕是中国特色社会主义的本质要求，也是一个长期的历史过程。近年来，虽然我国创新驱动经济高质量发展成效显著，基尼系数呈现波动中下降的态势，但整体仍超过国际警戒线0.4，我国仍存在严重的收入不平等，换言之，经济增长与收入不平等的库兹涅兹“倒U”型曲线的拐点并未出现。技术创新是经济增长的主要动力源，收入不平等是迈入共同富裕的“绊脚石”，技术创新与收入不平等之间呈现怎样的关系？探讨这一问题对于缓解收入不平等、提高技术创新能力，驱动经济高质量发展，实现共同富裕具有重要的战略意义和实践价值。

当前，大多数文献主要探讨技术创新与收入不平等的单向关系，而现实中，二者往往呈现相互影响的关系。因此，本文从技术创新与收入不平等双向互动的角度对二者的关系进行深入探讨。首先，本文在对技术创新与收入不平等进行概念界定与理论梳理的基础上构建二者的互动机制；其次，从创新投入和创新产出的角度分析技术创新的现状，从城乡收入比和泰尔指数的角度分析收入不平等现状，明晰二者的发展趋势；再次，利用我国261个城市2010-2019年的面板数据构建门槛回归模型，对技术创新与收入不平等的双向互动关系进行实证分析，并将其分为创新型城市与非创新型城市进行阐述，研究结果表明技术创新与收入不平等之间存在先促进后抑制的非线性互动关系，相对于非创新型城市而言，创新型城市的先促后抑作用更明显；反向看，收入不平等对技术创新始终存在先促后抑的作用；最后，本文从改善劳动力技能结构缩小收入不平等、因地制宜的制定创新战略并发挥创新型城市的辐射带动能力、完善社会保障制度等角度提出了缓解收入不平等、提升技术创新水平的相关对策建议，这对于最终迈向共同富裕具有重要的现实借鉴意义。

The 20th Party Congress report points out that common prosperity is the essential requirement of socialism with Chinese characteristics, and it is also a long-term historical process. In recent years, although China's innovation-driven economic development of high quality has been effective, and the Gini coefficient has been declining in a fluctuating trend, the overall Gini coefficient still exceeds the international warning line of 0.4, and there is still serious income inequality in China, in other words, the inflection point of the Kuznets "inverted U" curve of economic growth and income inequality has not appeared. Technological innovation is the main driving force of economic growth, and income inequality is the "stumbling block" to common prosperity, what is the relationship between technological innovation and income inequality? What is the relationship between technological innovation and income inequality? It is of strategic importance and practical value to explore this issue in order to alleviate income inequality, improve technological innovation capacity, drive high-quality economic development, and achieve common prosperity.

Currently, most of the literature mainly explores the one-way relationship between technological innovation and income inequality, while in reality, the two often present a mutual influence relationship. Therefore, this paper explores the relationship between technological innovation and income inequality from the perspective of their two-way interaction. Firstly, this paper constructs the interaction mechanism between technological innovation and income inequality based on the conceptual definition and theoretical arrangement of the two; secondly, the current situation of technological innovation is analyzed from the perspective of innovation input and innovation output, and the current situation of income inequality is analyzed from the perspective of urban-rural income ratio and Thayer index to clarify the development trend of the two; thirdly, panel data of 261 cities in China from 2010-2019 are used to The threshold regression model is constructed to empirically analyze the two-way interaction between technological innovation and income inequality, and it is divided into innovative cities and non-innovative cities for elaboration, and the research results show that there is a non-linear interaction between technological innovation and income inequality that is promoted first and then suppressed, and the role of promoting first and then suppressing later is more obvious in innovative cities compared with non-innovative cities; in the reverse direction, income inequality has a significant impact on Finally, this paper proposes countermeasures to alleviate income inequality and improve technological innovation from the perspectives of improving the skill structure of labor force to reduce income inequality, formulating innovation strategies according to local conditions and bringing into play the radiation-driving ability of innovative cities, and improving the social security system, which have important practical implications for the ultimate development of common wealth.