Marketing has evolved over the years from a largely intuitive exercise based on an executive’s judgment and experience, into becoming a data-obsessed occupation. A hundred years ago, department store magnate John Wanamaker was famously quoted as saying that he knew half of his advertising spend was wasted. The problem, he said, was that he didn’t know which half. That’s not the case today.
http://securityboulevard.com/2019/12/the-changing-landscape-of-customer-acquisition-engagement-and-retention-in-2020/
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