Pharmaceutical giant Pfizer has sealed a more than $150 billion merger with fellow drug maker Allergan, marking one of the largest takeovers in the history of the healthcare industry. Because Allergan is headquartered in Ireland, the deal will allow Pfizer to avoid billions in U.S. taxes. It’s believed to be the largest example to date of a so-called tax inversion – where a U.S. firm acquires a firm based overseas in order to dodge U.S. taxes.
2015