随着我国药品价格监测体系的逐步建立,药品价格如何对比成为社会各界关注的焦点问题。通过文献研究、逻辑推理等方法,从理论角度探讨国际间药品价格如何对比。由于药品完全匹配的研究假设很难得到满足,试图从样本选择目标、样本选择偏差、价格对比方法等方面进行理论探讨,进一步探讨如何进行国际间药品价格比较研究。 With the gradual establishment of drug price monitoring system in our country, how to compare drug prices has become the focus of attention of all walks of life. Through literature research, logical reasoning and other methods, from a theoretical perspective to explore how international drug prices compared. Due to the hypothesis of exact matching of drugs, it is hard to be satisfied, trying to discuss theoretically from the aspects of sample selection target, sample selection bias and price comparison method, and further discuss how to conduct international comparative study of drug prices.