Everybody has been buzzing about Nik Wallenda and his daredevil crossing over Niagara Falls this week. Elsewhere in the world of sports, the USA gymnastics trials for the Olympics will start later this month, and there’s nary a whisper about it. This difference in public interest/attention makes me think about the difference between the fields of economics and marketing: economics is like a high-wire act, and marketing is equivalent to gymnastics. Let me explain.