基于双重差分模型的国内药品价格改革政策效应评估  

Evaluation on the Policy Effect of the Chinese Pharmaceutical Price Reform Based on Difference-in-Difference Model

作　　者：颜琰 

机构地区：[1]华中科技大学经济学院,武汉430074

出　　处：《中国卫生经济》2017年第11期11-13,共3页Chinese Health Economics

摘　　要：目的:评估2015年5月我国药品价格改革的政策效应,填补国内对药品价格改革效应的实证研究空缺。方法:基于2011年1月到2017年2月国内外药品价格相关指数,使用双重差分模型论证药品价格改革对药品价格和波动率的政策效应。结果:价格和波动率的双重差分模型均有显著为正的双重差分因子,药品价格改革提高了国内药品价格和价格的波动率。结论:从短期政策效果来看,药品价格改革的确不能降低药品价格,减轻民众医疗负担。但从经济学的角度来看,市场定价带来的市场竞争能够在长期内形成合理的药品价格,对医疗市场发展起到积极的作用。Objective： To evaluate the policy effect of the pharmaceutical price reform which implemented in May 2015 and fill the vaeancy of domestic empirieal studies of the reform. Methods： Two difference-in-differenee（DID） models were constructed by using pharmaceutical related price indexes between January 2011 and February 2017 for studying the policy effect of pharmaceutical price reform. Results： Two DID models of prices and fluctuation rate both had a significantly positive DID estimator. The drug price reform improved the prices and fluctuation rate of domestic drug. Conclusion： In the short-term, the reform could not reduce pharmaceutical price and release medical burden. However, from the aspect of economies, market pricing brought market competition which could form a reasonable pharmaceutical price in the long-run and had positive impacts on the development of the medical market.

关 键 词：药品价格改革 政策效应 双重差分模型 市场定价 

分 类 号：R951[医药卫生—药学]