European Union – Freedom of movement. The Court of Justice of the European Union gave a preliminary ruling, deciding that the obligation of transparency, which flowed from art 56 of the Treaty on the Functioning of the European Union, precluded the extension by a member state, to all employers and employees within a sector, of a collective agreement concluded by the employers' and employees' respective representatives for a sector, under which a single economic operator, chosen by the social partners, was entrusted with the management of a compulsory social insurance scheme established for employees, where the national rules did not provide for publicity sufficient to enable the competent public authority to take full account of information which had been submitted concerning the existence of a more favourable offer.