a group of undertakings which in some way forms a unit, e.g. by financial or political influence on one another, or in one way or another are linked together. The term is used in 83/349
in the meaning of unity or union of undertakings in a broad sense.
The following shall be prohibited as incompatible with the common market: all agreements between undertakings, decisions by association of undertakings and concerted practices which may affect trade between Member States and which have as their object or effect the prevention, restriction or distortion of competition within the common market ...
