Global drug diffusion and innovation with the medicines patent pool
研究了首个专利药联合许可平台：药品专利池对全球药物扩散和创新的影响，发现该平台显著增加了仿制药供应，尤其在专利保护强的国家，并促进了临床试验和药品审批。
This paper studies the impact of the first joint licensing platform for patented drugs, the Medicines Patent Pool, on global drug diffusion and innovation. The pool allows generic firms worldwide to license drug bundles cheaply and conveniently for sales in a set of developing countries. I construct a novel dataset from licensing contracts, public procurement, clinical trials, and drug approvals. Using difference-in-differences methods, I find that the pool leads to substantial increases in the generic supply of drugs purchased, particularly in countries with stronger patent protection. In addition, there are some positive increases in clinical trials and drug product approvals after a compound enters the pool, mostly by firms outside the pool.