Research on the Influence of Tax Incentives and Financing Constraints on NEEQ Enterprises’ Innovation

This paper adopts the two-way fixed effect model to analyze the listed enterprises on the New Third Board (NEEQ) from 2014 to 2021. In the process of analysis, to ensure the rationality of the regression results, the missing core data and related data of financial enterprises are excluded. Through empirical analysis, this paper draws the following conclusions: (1) Tax incentives can promote enterprise innovation. (2) Internal and external financing constraints inhibit enterprise innovation. (3) Internal and external financing constraints play an intermediary role in tax incentives and enterprise innovation. (4) The intermediary effect of internal financing constraints is significant in both the fundamental layer and the innovation layer, while the external financing constraints are only significant in the fundamental layer. (5) Compared with state-owned enterprises, the intermediary effect of internal and external financing constraints is more significant in non-state-owned enterprises.