2025年12月5日（周五）14:00-16:00 李文健 （浙江大学）

讲座系列：现代财税理论与政策系列讲座第27场（学科发展系列讲座总期第105场）

讲座人：李文健 （浙江大学）

时间：2025年12月5日（周五）14:00-16:00

地点：博学楼501

主持人：谭娅（对外经贸大学国际经济贸易学院能源与低碳经济学系副教授）

讲座题目：Who Captures Tax Incentives for Smalls? Size-based Taxation and Incentive Sharing

讲座摘要：Large firms can exploit size-based tax incentives by associating with small and micro enterprises （SMEs）, effectively using them as tax havens and shifting profits to them. In such cases, rising reported profits of SMEs need not reflect real welfare gains, and the macro implications of these increases can be misleading. This paper documents this mechanism by estimating the existence and magnitude of "incentive sharing " between SMEs and large firms. Using a series of increases in notch tax thresholds in China, it examines （i） how SMEs' responses depend on affiliation with large firms, and （ii） how these shocks propagate to the large firms themselves. We find that SMEs affiliated with large firms exhibit much larger increases in reported profits than their counterparts, especially when the large firm is profitable or has a high markup. In contrast, affiliated large firms experience significant profit declines following the tax incentives. These results are robust across all reforms in the sample. Quantitatively, affiliation explains 43%–68% of the rise in affiliated SMEs' reported profits and 30%–39% of overall profit growth, with both shares increasing in the notch threshold. The decline of large enterprises' profit – profit shifting– accounts for about one-third of affiliated profit changes.

主讲人简介：

浙江大学百人计划研究员，博士生导师，北京大学经济学博士。研究领域为公共经济学与宏观公共财政，基于最优税收与税负归宿理论的政策分析与制度设计。研究成果发表于American Economic Review、Journal of Public Economics、《经济研究》、《管理世界》与《经济学（季刊）》等期刊。主持2项国家自然科学基金。