The world's largest advertising group, WPP, has announced an increase in profits of 20% to £1bn, and has confirmed that the company's headquarters may move to London.

CEO of WPP Sir Martin Sorrell told the Today programme's Simon Jack that success proves that "jobs and growth go together".

When asked whether he would be moving the company back to the UK from its base in Dublin, where corporation tax rate is just 12.5%, Sir Martin said he was "delighted" to say that it looks like such a move is likely as soon as legislation is passed on overseas profit and subject to a shareholders meeting.

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