Sorrell: Put Twitter Into Perspective (Audio)

Martin Sorrell, Executive Chairman at S4 Capital, discusses his pitch to clients in a tougher economic environment, as S4 Capital delivers a 73% jump in gross profit in the third quarter. He tells Bloomberg's Charles Capel and Stephen Carroll that the upheaval at Twitter must be viewed in perspective, as the company only accounts for 1% of the global digital advertising market.

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