创造性破坏与收入差距的振荡式扩大

本文试图运用熊彼特的技术创新和“创造性破坏”理论来解释收入差距振荡式扩大的动态特征。研究的结论是在以“创造性破坏”为特征的经济增长过程中,收入差距会扩大,而且创造性破坏的程度越强,经济增长速度越高,收入差距越大。其社会基础和原因是社会分工和阶层差异,这种差异会在经济增长过程中再度拉大。在方法上,本文用物理模型形象地描述了差距扩大过程,揭示了增长模型中定点状态分析方法的缺陷。对具体过程进行分析表明,收入差距扩大的方式为振荡式,这种振荡特征由个体和技术之间的动态竞争性质———“创造性破坏”决定。美国家庭收入的经验分析证实,在动态竞争的经济增长过程中,收入差距确实在振荡中扩大。

Creative Destruction and Oscillating Enlarge of Income Inequality

Joseph Schumpter's Innovation and Creative Destruction are used to explain dynamic feature of income inequality enlarge in oscillation. Income inequality will be larger during economic growth through creative destruction. The higher the degree of creative destruction, the faster the economic growth and the larger of income inequality would be. This paper analyzes the social foundations of this process, and believes that the social ladder and specification will enlarge during growth. In methodologies, the physical model describes enlarging process, and the limits of the tools based on steady-state are discovered. It shows that the process is in oscillation, not solely increasing. This feature is determined by the interactions among individuals and dynamic competition of technical innovations——Creative Destruction. The empirical evidence based on US family wages proves that the income inequality will enlarge in oscillation during the dynamic process.