Pfizer’s Big Breakthrough: Global Tax Avoidance - by the editorial board of The New York Times
In recent years, dozens of American companies have used similar tactics, known as inversions, to reincorporate in Ireland, Britain and other countries with lower corporate tax rates than those in the United States — at a cost to the Treasury conservatively estimated at $20 billion over 10 years. Pfizer’s merger is by far the largest such move.
(...) inverted companies continue to enjoy the protection of patent laws in the United States, as well as their connections, official and unofficial, with federal research agencies — all of which are crucial to drug-company profits. Contrary to popular belief, much high-risk, pathbreaking research and development can be traced not to the big drug companies but to taxpayer-funded research at the National Institutes of Health.