The US Chamber of Commerce said the move by Paris, announced Thursday as US industrial giant General Electric presses to buy a division of France's Alstom, would not help the country's economy.
"From an open investment policy perspective there is nothing about the motivations behind the recent French decree... That isn't explicitly a mix of industrial policy and protectionism," said Sean Heather yesterday, executive director for international policy and antitrust policy at the chamber.
Such moves are "doing nothing to increase the country's competitiveness," he told AFP.
Economy Minister Arnaud Montebourg called it a move of "economic patriotism."
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"These protective measures on France's strategic interests are a renewal of our powers," he told Le Monde newspaper.
Alstom has said it will decide by the end of May on GE's offer of USD 17.0 billion for its energy activities.
But Germany's Seimens has made a counter-bid, and Montebourg has expressed strong reservations about the deal, which involves Alstom's strongest arm.