Sales discovery helps determine ad efficacy

There’s a well-known saying in the advertising industry that goes:

“Half the money I spend on advertising is wasted; the trouble is I don’t know which half.”

The sentence is credited to John Wanamaker, a successful turn of the century merchant, who died in 1922.

Nearly a hundred years after his death, his basic truth about marketing is on the verge of changing so profoundly that he would be stunned. You can now get much closer to knowing which part of your spending is successful!

One way that marketing is…