My father always complained that when I left a light on "do you have stock in the Electric Company?" Which is the same as the trend that people who participate in surveys for a brand have better loyalty in that brand.
My "research" then points to a new "fact". If people DO OWN STOCK in a brand, then their brand loyalty is almost assured.
The conclusion is simply that the best advertising for a brand is TO SELL STOCK in the company to all the consumers. Here is a great suggestion: Instead of coupons, or airline miles, or other offers, a brand should offer STOCK in the company for brand loyalty. Wow. What a concept. You heard it here first, folks. I own stock in Ford, so of course I own one. Or two.