THE CONCEPT OF WORKER (IN ARTICLE 45 TFEU)
By Mpia Tsolaki, Lawyer** Freedom of movement for workers is founded on Article 45(1) TFEU and enshrined in fact in the abolition, set out in its second paragraph, of any discrimination based on nationality between workers of the Member States as regards employment, remuneration and other conditions of work and employment [1] . That prohibition has been regarded since the beginnings of the establishment of the single European Market as an indispensable corollary to its full integration since it has crucially promoted mobility of the workforce throughout the European Union (hereinafter EU) [2] . From that point of view, it is therefore of outmost importance for ascertaining its ambit to determine at the outset the concept of "worker", which is not defined by neither the primary nor the secondary EU legislation. As expected, the Ariadne’s thread has been offered by the European Court of Justice (hereinafter ECJ) that has been constantly producing an ample case-law, which keepi