U.S. employers with French operations must focus carefully on their investment or divestment operations. Through the " joint employer theory " employees of a French company can now pierce its corporate veil to hold the ultimate parent, even one based in the United States, liable for restructuring costs, including severance packages and damages for unfair dismissal.

Nicolas Sauvage’s following presentation gives you the crucial aspects on this French distinctive feature:  "A New Challenge for International Groups Established in France"