An interesting research article at the Health Affairs blog asserts there is no relationship between high U.S. prescription drug prices and drug companies’ research and development budgets.
The authors point out that U.S. prices for patented prescription drugs are significantly higher, in real dollars, than prices in other developed countries. (Most observers claim this is because foreign governments impose price controls. I think it is more attributable to price differentiation due to variation in national income per capita.)
The point of the article is to debunk the argument that research-based drug companies must earn high profits if they are going to reinvest in R&D. While the data are correct, the article misunderstands the nature of capital markets.