Forming the world's largest advertising company has already cost Publicis Groupe and Omnicom millions in fees, disagreements over who should buy whom and led to in-fighting over senior roles in the
prospective newly-merged giant. When the deal was announced last July it was expected to be completed during Q1 this year. However,
Campaign reports Omnicom has already spent $7m in legal
fees and, although EU and US approval has been gained, China is still a potential stumbling block. Tax rulings in the Netherlands are also still awaited.
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