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Pfizer-Allergan Merger Leads To Concerns About Groton Campus, Taxes

Pfizer-Allergan Merger Leads To Concerns About Groton Campus, Taxes

A $160 billion merger of Pfizer Inc. and Allergan plc, which would create the world's largest drugmaker, sent ripples through Connecticut's bioscience industry after it was announced Monday, again raising uncertainty about the future of Pfizer's research center in Groton.

More broadly, the announcement raised new questions about U.S. corporations moving offshore, since the tax bill for the new company will be cut dramatically because it will be headquartered in Ireland, which has lower corporate taxes.

In the past, Pfizer's mergers have taken a heavy toll on Connecticut, sometimes unfolding over years. The 2009 combination of Pfizer and rival Wyeth spawned cost-cutting...

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