> No one is willing Counter-example: I know of at least one consumer goods company that has studied the long-term effects of certain kinds of sponsorship deal

> No one is willing Counter-example: I know of at least one consumer goods company that has studied the long-term effects of certain kinds of sponsorship deals on consumer behavior. The study had tracked people for at least 10 years at the time I learned of it. Of course, this company would never publish the results, because they provide a competitive advantage in structuring and bidding on sponsorship deals.