“互联网+”赋能企业创新的异质动态效应研究——政府研发资助的调节作用

在国家推动互联网与实体经济深度融合的关键时期，以政府研发资助为切入点，剖析政府应如何更好地支持企业践行“互联网+”创新战略。在阐释政府研发资助影响“互联网+”企业创新内在机制的基础上，基于2006-2018年中国省级面板数据及门槛回归模型进行实证检验。研究发现：“互联网+”显著推动企业创新效率改善，而政府研发资助有助于强化这种积极影响；企业层面的“互联网+”创新溢出存在明显的政府研发资助三重门槛效应，只有当政府研发资助强度超越一定门槛条件时，才能最大限度地释放“互联网+”的创新溢出；政府研发资助调节下的“互联网+”创新溢出效应具有显著空间异质性特征，在不同空间层面上显现出差异化和动态化调节影响；现阶段政府研发资助对“互联网+”企业创新的正向调节溢出还相对有限，且实际调节效果具有差异化特征，表现为中部地区最为显著、东部地区次之、西部地区最弱的阶梯状分布。研究结论可为新时代下构建时空分异的政府研发资助策略，进一步加快释放“互联网+”企业创新的溢出红利提供一定启示。

Research on Internet+'s Heterogeneous Dynamic Effects on Promoting Enterprise Innovation:Based on the Perspective of Government R&D Funding Adjustment

In the prominent period of promoting deep integration of Internet and real economy, taking government R&D subsidy as the breakthrough point, this paper analyze how the government support enterprises in implementing the “Internet+” innovation strategy better. Based on the explanation of the internal mechanism of R&D subsidy affecting “Internet+” innovation in enterprises, made empirical study based on China's provincial panel data from 2006 to 2018, with threshold regression model. The results found that: “Internet+” improves the efficiency of enterprise innovation, while government R&D funding could strengthen the positive impact. And there exist obvious three threshold effects of government R&D funding on “Internet+” innovation spillover, only when the government R&D subsidy exceeds a certain threshold condition can the “Internet+” innovation spillover could be maximally released. The “Internet+” innovation spillover effect under the government R&D subsidy has significant spatial heterogeneity, and the adjustment effect of alienation and dynamic change in different regions, the positive adjustment affection of government R&D funding on “Internet+” innovation spillover is relatively limited at present stage, and the practical regulation effect is alienated. It showed the character of being most obvious in the central region, next in the eastern region, and the weakest in the western region in steps. This paper provided certain inspiration for government R&D subsidy strategy to build spatiotemporal differentiation in China new era, and accelerating the release of the “Internet+” innovation spillover dividends in enterprises.