Surprisingly, many consumers are. If you've been following the presidential election, Hillary Clinton has gotten the backing of high wattage celebrities including Katy Perry, Lady Gaga, Beyonce, Jay-Z, Bon Jovi, Bruce Springsteen, and Lebron James. And you've likely lost count of the many advertisements you've come across -- whether on TV or in magazines -- where a celebrity promotes a brand of lipstick, shampoo, or jeans as if it were the best thing since sliced bread. But are such endorsements effective? That, of course, depends on the person. If you're a hardcore Paty Perry fan, for example, you'd probably be more likely to buy a product she endorses or vote for Hillary Clinton. Since I'm not a big fan of any of the high-profile celebrities endorsing Clinton, it didn't make me any more inclined to vote for her. Celebrities don't hold much sway over my purchasing decisions unless they're people I genuinely admire and respect. For inst...