DOES INCOME INEQUALITY AFFECT GREEN INNOVATION? A NON-LINEAR EVIDENCE

IF 4.8 2区经济学 Q1 ECONOMICS

Technological and Economic Development of Economy Pub Date : 2023-08-24 DOI:10.3846/tede.2023.19271

Xing-yun Zou, Xinman Peng, Xinxin Zhao, Jie Ma, Chun-ping Chang

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引用次数: 4

Abstract

It is crucial for the advancement of political economics and innovation economics to examine the relationship between income inequality and green innovation (GI). Using the panel fixed effect model, this study investigates the influence of income inequality on GI across 97 countries from 1991 to 2018 and demonstrates a significant non-linear association between the two. The empirical data exhibit an inverted U-shape relationship, suggesting that there is an optimal degree of income inequality that optimizes GI output, and the inflection point of our overall sample is at a Gini coefficient of 0.366. Additionally, we choose a set of robustness tests to validate the results by substituting explained variables, adding omitted variables, and employing the difference and system generalized method of moments (GMM) estimations. Moreover, heterogeneity analysis reveals that the non-linear patterns vary among samples, with the U-shape relationship being more significant in countries with lower income, higher corruption, and weaker government effectiveness. Our findings provide government decision-makers with a crucial reference for maximizing the importance of income distribution in fostering GI and achieving sustainable development.

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收入不平等会影响绿色创新吗?非线性证据

研究收入不平等与绿色创新之间的关系对政治经济学和创新经济学的发展至关重要。本研究采用面板固定效应模型，考察了1991 - 2018年97个国家收入不平等对GI的影响，发现两者之间存在显著的非线性关联。实证数据呈倒u型关系，表明存在一个最优的收入不平等程度来优化GI产出，我们整体样本的拐点在基尼系数0.366处。此外，我们选择了一组鲁棒性检验，通过替换解释变量，添加省略变量，并采用差分和系统广义矩法(GMM)估计来验证结果。此外，异质性分析表明，不同样本之间的非线性模式存在差异，在收入较低、腐败程度较高、政府效率较弱的国家，u型关系更为显著。我们的研究结果为政府决策者提供了重要的参考，以最大限度地发挥收入分配在促进地理标志和实现可持续发展中的重要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Technological and Economic Development of Economy ECONOMICS-

CiteScore

10.00

自引率

8.50%

发文量

审稿时长

15 weeks

期刊介绍： Technological and Economic Development of Economy is a refereed journal that publishes original research and review articles and book reviews. The Journal is designed for publishing articles in the following fields of research: systems for sustainable development, policy on sustainable development, legislation on sustainable development, strategies, approaches and methods for sustainable development, visions and scenarios for the future, education for sustainable development, institutional change and sustainable development, health care and sustainable development, alternative economic paradigms for sustainable development, partnership in the field of sustainable development, industry and sustainable development, sustainable development challenges to business and management, technological changes and sustainable development, social aspects of sustainability, economic dimensions of sustainability, political dimensions of sustainability, innovations, life cycle design and assessment, ethics and sustainability, sustainable design and material selection, assessment of environmental impact, ecology and sustainability, application case studies, best practices, decision making theory, models of operations research, theory and practice of operations research, statistics, optimization, simulation. All papers to be published in Technological and Economic Development of Economy are peer reviewed by two appointed experts. The Journal is published quarterly, in March, June, September and December.