An interesting analysis of the Complusory Licenses issued for Pharmaceuticals around the world since 1995. The study conducted by Reed Beall and Randall Kuhn indicates that most CL episodes occurred between 2003 and 2005, involved drugs for HIV/AIDS, and occurred in upper-middle-income countries (UMICs). Aside from HIV/AIDS, few CL episodes involved communicable disease, and none occurred in least-developed or low-income countries.
Access the full study here

