异质性视角下政府科技资助与企业R&D产出——基于上海市企业的实证研究

Public Technology Subsidies and Enterprise R&D Output from Perspective of Heterogeneity——An Empirical Study Based on Enterprises in Shanghai

企业所有制类型和企业规模的不同可能会导致政府科技资助对企业R&D产出的影响不同。基于所有制和企业规模相组合的异质性视角,理论上探讨了政府科技资助对企业R&D产出影响的权变效应,并采用上海市企业的面板数据,运用负二项回归的固定效应模型进行了实证检验。研究发现,就上海市而言,政府科技资助能够有效的促进企业R&D产出,且对于小微型非国有企业的促进最为显著,而对大中型国有企业R&D产出则存在微小的抑制作用。

The impacts of public technology subsidies may vary according to the ownership and size of enterprises. From the perspective of different combinations of the ownership and size, this paper interprets the contingency effects on public technology subsidies and enterprise R＆D output in theory, and makes an empirical test through the negative binomial model with fixed effects on a panel data of enterprises in Shanghai. The main empirical findings are as follows： public technology subsidies have incentives on enterprise R＆D output, but these incentives mainly exist in miniature sized non- stated- owned enterprises; public technology subsidies have a little negative impact on the large- and- medium sized state - owned enterprises.