The EU has one of the world's most open investment regimes, and collectively EU Member States have the fewest restrictions in the world on foreign direct investment (FDI). The OECD expressly acknowledged this in its FDI Regulatory Restrictiveness Index which measures statutory barriers against foreign investment in over 60 countries.
The Commission's reflection paper of 10 May 2017 on Harnessing Globalisation recognised increasing concerns about foreign investors' strategic acquisitions of European companies with key technologies. These concerns called into question the capacity of the current regulatory framework to address them.