【摘要】 以2008～2023年中国上市平台企业数据为样本，采用双重差分方法评估平台企业并购对劳动收入份额的影响。研究发现：平台企业并购能够通过提升市场势力、推动技术进步、促进零工经济3个作用渠道显著降低劳动收入份额。异质性分析表明，在高融资约束企业、高科技行业，以及劳动保护力度较弱的地区，平台企业并购对劳动收入份额的降低作用更加明显。进一步研究发现，平台企业并购将提升高技能员工劳动收入份额，压缩低技能员工劳动收入份额；同时，平台企业并购对劳动收入份额的影响与其并购规模有关，并购规模增大将显著降低企业劳动收入份额。更多还原

【Abstract】 Using data from Chinese listed platform enterprises between 2008 and 2023,this study employs a multi-period DID(difference-in-differences)approach to assess the impact of platform enterprise mergers and acquisitions(M&As)on labor income share.The results show that platform enterprise M&As significantly reduce labor income share through three channels:enhancing market power,driving technological progress,and fostering the gig economy.Heterogeneity analysis indicates that the negative impact of platform enterprise M&As on labor income share is more pronounced in firms with high financing constraints,in high-tech industries,and in regions with weaker labor protection.Further analysis reveals that platform enterprise M&As increase the labor income share of high-skilled workers while squeezing the labor income share of low-skilled workers.Additionally,the impact of platform enterprise M&As on labor income share is related to the scale of the merger,with larger merger scales significantly reducing the labor income share of firms.更多还原