Pricing and patents of HIV/AIDS drugs in developing countries

This article provides empirical evidence on the impact of patents on drug prices across developing countries. It uses sales data on human immunodeficiency virus (HIV)/acquired immuno deficiency syndrome (AIDS) drugs in a sample of 34 low- and middle-income countries between 1995 and mid-2000. The main findings are that patents do shift drug prices up, drug prices are correlated to per capita income levels and drug firms follow a skimming strategy when pricing new HIV/AIDS drugs. That is, there is across country and intertemporal price discrimination in the global drug markets.