A regulator said it was opening an investigation into Ticketmaster’s actions, but the company disputed that “dynamic pricing” came into play. Oasis (Music Group), Box Office Sales, Prices (Fares, Fees and Rates), Price Gouging, Pop and Rock Music, Fans (Persons), Ticketmaster, Live Nation Entertainment Inc, Competition and Markets Authority (Great Britain), Regulation and Deregulation of Industry, Gallagher, Liam, Gallagher, Noel A regulator said it was opening an investigation into Ticketmaster’s actions, but the company disputed that “dynamic pricing” came into play. NYT > Business