数字经济结构优化与高质量发展效应:闲暇时间与研发效率动态关系变化的经验启示

Structural Optimization of Digital Economy and High Quality Development Effect:Experience Enlightenment From the Dynamic Relationship Between Leisure Time and R&D Efficiency

通过构建包含数字经济部门的DSGE模型,数值模拟数字经济结构(包含数字设施、数字产业化和产业数字化)变化对高质量发展效应的作用影响,研究表明:数字经济结构变化对研发效率的影响大于对闲暇时间的影响,对“闲暇时间-研发效率”动态关系变化下高质量发展效应的影响显著;数字设施的快速发展可以促进经济高质量发展,数字产业化和产业数字化之间的动态均衡关系决定了高质量发展效应变化,产业规划政策上需要关注数字设施、数字产业化和产业数字化间的“逐级扩张效应”;数字产业化存在“破冰期”,在初始阶段高质量发展效应会被抑制,但随着规模增加会快速得到提升;数字经济推动高质量发展会呈现倒“U”型走势,政策上需要防控数字经济盲目扩张,合理优化数字经济结构,可以更好地提升高质量发展效应。

By constructing a DSGE model including digital economic sectors,using numerical simulation to test the impact of changes in digital economic structure(including digital facilities,digital industrialization and industrial digitization)on high-quality development effect.The research shows that the impact of changes in digital economic structure on R&D efficiency is greater than that on leisure time,and on“leisure time-R&D efficiency”.The effect of high-quality development is significant under the change of dynamic relationship.The rapid development of digital facilities can promote high-quality economic development.The dynamic equilibrium relationship between digital industrialization and industrial digitization determines the change of high-quality development effect.Industrial planning policies need to pay attention to the“stepwise expansion effect”among digital facilities,digital industrialization and industrial digitization.There is an“ice breaking period”in digital industrialization.In the initial stage,the effect of high-quality development will be restrained,but it will be rapidly improved with the increase of scale.The promotion of high-quality development by digital economy will show an inverted“U”trend.Policies need to prevent and control the blind expansion of digital economy and reasonably optimize the digital economy structure,which can better improve the effect of high-quality development.