By buying a smaller overseas competitor and reincorporating abroad — a manoeuvre called inversion — health care companies are extricating themselves from the American tax regimen. Their new international domiciles also give companies easier access to overseas cash and make additional inversions more attractive.
[link url=http://dealbook.nytimes.com/2014/07/14/shire-and-abbvie-in-talks-over-53-billion-pharmaceutical-merger/?emc=edit_th_20140715&nl=todaysheadlines&nlid=60640071]Full report in The New York Times[/link]