“…At the micro level, industrial synergy agglomeration not only enhances enterprise productivity through labor market sharing, economies of scale, and knowledge spillover effects but also facilitates access to diversi ed and re ned services, intangible knowledge, and promotes deeper collaboration among enterprises. This contributes signi cantly to improving enterprise productivity [21][22] . The impact of industrial synergistic agglomeration on micro-enterprises will in uence carbon emissions reduction in mid-level cities through two main pathways: Firstly, by strengthening mutual support between the productive services industry and manufacturing industry through synergistic agglomeration, it leads to endogenous growth [23] , gradually generating scale effects and resource sharing bene ts while reducing carbon emissions by enhancing energy e ciency within enterprises [24] .…”