> ...industry supplies the bulk of the funds devoted to research and development, the public sector—primarily the National Institutes of Health (NIH)—supports most of the nation’s basic biomedical research.
http://content.healthaffairs.org/content/30/2/332.full
This quote seems to indicate the majority of R&D is coming out of the private sector.
Moreover, this overhead of medical R&D from the public sector doesn't explain price differences in drugs between US and other developed nations:
http://usuncut.com/news/us-drug-prices-in-the-us-are-literal...
http://www.wsj.com/articles/why-the-u-s-pays-more-than-other...
There are deeper, systemic issues IMO.
On top of that, you're not forcing anybody to do anything.
The negotiation process is just different than when other countries are negotiating with US pharmaceutical companies.
Still kind of ridiculous that the amount we spend still amounts to most of the population getting shafted.