Brussels, 09/01/2014 (Agence Europe) - On Thursday 9 January, the European Commission authorised the proposed merger of Publicis, an international advertising and communication group based in France, and Omnicom, a global advertising, marketing and corporate communication company headquartered in the US. The bidding nature of the markets, the presence of other large competitors (WPP, Dentsu-Aegis, IPG and Havas), the relatively low barriers to entry, and the significant countervailing power...