中国居民收入差距变化对企业产品创新的影响机制研究
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| Title | Research on the Acting Mechanism of Chinese Residents Income Gap Change to Firms’ Product Innovation
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| 作者 | 安同良 千慧雄 |
| Author | An Tongliang and Qian Huixiong |
| 作者单位 | 南京大学经济学院；江苏省社会科学院经济研究所 |
| Organization | Nanjing University; Jiangsu Provicial Academy of Social Sciences |
| 作者Email | atliang@nju.edu.cn；huixiongqian@sina.com |
| 中文关键词 | 收入差距 产品创新 收入效应 价格效应 市场规模效应 |
| Key Words | Income Gap; Product Innovation; Income Effect; Price Effect; Market Scale Effect |
| 内容提要 | 改革开放以来，中国居民收入差距的持续扩大，不仅引起了全社会的巨大关注，更对中国的经济发展，尤其是向创新驱动的转型带来了严峻的挑战。本文从收入差距与技术创新关系这一独特的视角出发，突破了传统研究技术创新形式的不完全性、收入差距的不连续性、收入效应的同质性等局限性，在考虑了收入效应差异的基础上，创建了居民收入差距连续变化条件下的企业产品创新竞争模型，深刻揭示了收入差距的变化通过“价格效应”与“市场规模效应”的耦合对产品创新产生的复杂影响机制。并通过数值模拟、计量分析等方法进行了验证。研究表明：收入差距（基尼系数）与企业产品创新存在复杂的非线性关系。“收入效应”较小时，“市场规模效应”占主导，收入差距与产品创新之间呈现负相关；当“收入效应”较大时，“价格效应”占主导，收入差距与产品创新正相关；“收入效应”处于中度值时，收入差距与产品创新是“U”型曲线关系。本文的方法与结论拓展了收入差距与技术创新关系的研究进展。 |
| Abstract | Chinese residents income gap has been increasing continuously since the reform and opening, which not only attracts much attention of all society, but also brings a great challenge to the development of China, especially to Chinese innovation driven road. From a special perspective of the relation between income gap and technical innovation, this paper overcomes the traditional limitations of the incompleteness of technical innovation forms, the uncontinuity of income gap, the homogeneity of income effect, and considering the difference of the income effect, this paper builds a product innovation competition model among firms under a continuous change of income gap, through which this paper deeply reveals the complex mechanism of the income gap change to product innovation, which comes from the coupling effect of “price effect” and “market scale effect”. Also this paper tests the theory through simulation and econometric analysis. The research show: there exists a complex nonlinear relationship between income gap (Gini coefficient) and firms’ product innovation. When “income effect” is small, the “market scale effect” is dominant, the relationship between income gap and product innovation is negative; when “income effect” is large, the “price effect” is dominant, the relationship between income gap and product innovation is positive; when “income effect” is medium, it is a “U” curve relationship between income gap and product innovation. The method and conclusion extend the current research about the relationship between income gap and technical innovation. |
| 文章编号 | WP572 |
| 登载时间 | 2013-12-18 |
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