Popular wisdom asserts that getting a celebrity endorsement is a tried-and-true, simple-to-implement way to maximize advertising effectiveness. Sure, it's expensive, but celebrities always yield stronger ties with viewers and, ultimately, greater sales, right?
Wrong. Over the course of last year, time and time again we observed incredibly low effectiveness scores of TV ads starring celebrities. From Tiger Woods to Donald Trump, we found that with rare exception, celebrity endorsements were largely ineffective and failed to yield the benefits popular wisdom promises.
We set out to understand whether celebrities today are really worth the significant investment that brands were making. We studied every nationally televised ad for the first 11 months of 2010 and found that celebrity ads performed either below average or merely equaled it. Specifically, our study, 2010 Celebrity Advertisements: Exposing a Myth of Advertising Effectiveness, 2010, showed that fewer than 12% of ads using celebrities exceeded a 10% lift, and one-fifth of celebrity ads had a negative impact on advertising effectiveness.
Why was this?
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