【摘要】 本文通过拓展Antoniades (2015)的异质性企业模型发现数字经济的发展能够通过创新促进效应和竞争抑制效应影响企业出口产品质量，前者提高了出口产品质量，后者则降低了出口产品质量。基于中国工业企业数据、海关数据和企业专利数据的实证分析表明，在两种效应的共同作用下，数字经济的发展提高了企业出口产品质量，且企业生产率在该过程中发挥着正向调节作用。更多还原

【Abstract】 This paper expands Antoniades’ heterogeneous enterprise model and finds that the development of the digital economy can affect the quality of Chinese enterprises’ export products through innovation promotion effects and competition inhibition effects. The former improves the quality of export products,while the latter reduces the quality of export products. Empirical analysis based on Chinese industrial enterprise data,customs data,and enterprise patent data shows that under the combined effect of the two effects,the development of the digital economy promotes the upgrading of export product quality for enterprises,and enterprise productivity plays a positive regulatory role in this process.更多还原