统一大市场建设背景下的数字贸易驱动消费升级研究

立足于建设全国统一大市场的背景，研究不同市场一体化阶段数字贸易发展对消费升级的驱动作用。从机理上看，数字贸易通过创新供给和创新需求，驱动消费升级。将市场一体化的作用分为市场范围效应和价格稳定效应，通过构建数字贸易发展指标体系和面板门槛模型实证研究发现：数字贸易对消费升级的驱动具有门槛效应和非线性特征。随着市场一体化的市场范围效应提高,数字贸易对消费升级的驱动效应呈现“U” 型变化趋势；随着市场一体化的价格稳定效应提高，数字贸易对消费升级的驱动效应逐渐增强。中西部地区的驱动效应大于东部地区，内陆地区的驱动效应大于沿海地区。只有在市场一体化达到一定水平时，数字贸易对消费升级的驱动作用才能充分发挥。基于此，提出加快发展数字贸易和推进市场一体化建设等建议。

Research on Digital Trade-Driven Consumption Upgrading under the Background ofNational Unified Market Construction

Based on the background of building a unified national market,this paper studies the driving effect of digital trade development on the consumption upgrading at different stages of market integration.From a mechanism point of view,digital trade drives consumption upgrading through innovative supply and innovative demand.The role of market integration is divided into market scope effect and price stability effect.Through the construction of digital trade development index system and panel threshold model empirical research,it is found that the driving force of digital trade on consumption upgrading has threshold effect and nonlinear characteristics.As the market scope effect of market integration increases,the driving effect of digital trade on consumption upgrading presents a “U”-shaped change trend;as the price stabilization effect of market integration increases,the driving effect of digital trade on consumption upgrading gradually increases.The driving effect of the central and western regions is larger than that of the eastern region,and the driving effect of the inland regions is larger than that of the coastal regions.Only when market integration reaches a certain level can digital trade play a full role in driving consumption upgrading.Based on this,suggestions are put forward to accelerate the development of digital trade and promote the construction of market integration.