In 2017, the owners of a US concert venue held a meeting with Ticketmaster about securing a ticketing partner. They were surprised to be joined by a promoter from Live Nation, its massive US events owner.In the meeting, the Live Nation executive said explicitly that if the venue didn’t choose Ticketmaster, it would not stage events there. And when the venue eventually did choose a rival ticketer, Live Nation allegedly made good on its threat. Rather than getting the three or four shows a year ex...