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After reading 1234 websites, we found 2 different results for "Who said half of advertising money is wasted"
John Wanamaker
The marketing pioneer John Wanamaker reportedly said that half the money spent on advertising is wasted; the trouble is we don’t know which half.
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John Wannamaker
John Wannamaker once said, “Half the money I spend on advertising is wasted; the trouble is I don’t know which half.”
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