@Mattisupa said:

Does this mean that the global economy is now going to be based on goo balls and the one for $3 two for $5 principle?

Might be an improvement on what we've got now. I guess he's saying a lot of the global economy is ALREADY based on goo balls, we just didn' t know it. And most goo ball makers don't report the income so it doesn't go into GDP :-)

Anyway, the "so what" here is that the "music industry" and "concerts" are an important enough source of economic activity that serious economists study "rockonomics". And apparently that there's enough money in the biz that economists want to look at the economic and business side of music too.

It's not "only rock and roll" anymore to Very Serious People[tm] is the point I guess.