目的:探究国家药品集中带量采购政策对药企研发投入的影响和作用机制。方法:以前4轮(截至2021年2月)药品集中带量采购中标的国内上市企业作为实验组,利用一对一倾向匹配得分(PSM)筛选出特征相似的未中标国内上市企业作为对照组,利用双重差分(DID)进行分析。结果:国家药品集中带量采购政策对中标药企创新有显著正向影响。企业规模、营业利润等变量对药企研发投入有正向影响,企业年龄和财务杠杆对研发投入有负向影响。药品价格和销售费用在国家药品集中带量采购政策对企业研发水平的影响中起中介作用。结论:国家应持续推动集中带量采购政策的常态化、制度化并提速扩面,增强政策协同效果;企业应顺应国家药品集中带量采购的发展趋势,积极转变发展战略,不断开拓创新。
Objective: To explore the infl uence and mechanism of national drug centralized procurement policy on R&D investment of pharmaceutical enterprises. Methods: The domestic listed enterprises winning the bid in the previous four rounds (before February 2021) were used as the experimental group, and the domestic listed enterprises with similar characteristics were selected by using one-to-one Propensity Score Matching (PSM), and then the DID model was used for analysis. Results: The national drug procurement policy has signifi cant positive influence on the innovation of bid-winning enterprises. Variables such as firm size and operating profit had a positive impact on R&D input, while fi rm age and fi nancial leverage have a negative impact on R&D input. Drug price and sales cost play an mediating role in the infl uence of the national drug centralized procurement policy on R&D input. Conclusion: The government should continue to promote the normalization and institutionalization of centralized procurement, accelerate the expansion of coverage, and enhance the synergy effect of policies. Meanwhile, enterprises should conform to the development trend of procurement, actively change the development strategy, and constantly explore and innovate.
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