科技项目、科技认定与企业研发投入

利用苏州市1413家企业微观调研数据，运用倾向得分匹配法（PSM）考察了政府科技项目的分配倾向及其对企业研发投入的激励效应，并将政府不同研发支持方式的内在相互作用纳入分析框架。研究发现，政府科技项目倾向于支持那些曾获得科技认定、内部研发投入大（研发资金、研发人员）、技术基础强的企业，科技认定是政府科技项目分配的重要依据。参与政府科技项目对企业研发投入具有显著的激励效应，其平均研发强度比未参与政府科技项目的企业高出3.75个百分点。这种激励效果受到科技认定等因素的影响，在获得科技认定的企业中，政府科技项目对企业研发投入具有显著的正向激励作用，在未获科技认定的企业中，这种激励效果不显著。

Science and technology projects,high-tech recognition and enterprises' R&D input

Based on the survey data of 1413 enterprises in Suzhou, we use the propensity score matching method (PSM) to analysis the distribution tendency of government's science and technology projects and the incentive effect on enterprises' R&D input. We consider the internal interaction between government's different R&D supporting methods. This paper finds that government's science and technology projects tend to support enterprises that have high-tech recognitions, stronger investments in R&D and better technical bases. Scientific and technological projects have a significant incentive effect on enterprises' R&D input. These enterprises' average R&D intensity is 3.75 percentage points higher than that of the enterprises that have not participated. This incentive effect is influenced by factors such as high-tech recognition. In the enterprises which have obtained high-tech recognition, the government science and technology projects have a significant positive incentive effect on enterprises' R&D input. This incentive effect is not significant in the enterprises without high-tech recognition.