Ioana Popescu, assistant professor of decision science at INSEAD (Paris) has just published a paper on U2.
Popesu's paper is a study of the band's pricing strategy for its recent Vertigo world tour. The 90-date tour played to 3 million people and generated $260 million in revenue.
Popescu discovered that the band created a global pricing model for its ticket prices. Tickets started at $50 and went up to $165.
Interestingly, the band priced the best seats, the ones on the floor, at the lowest price.
It appears you don't have Flash installed.
