Ticketmaster, the largest event ticket seller in the country, recently expanded its use of paperless tickets that requires buyers to pick up tickets on the day of the event and show identification (Reuters, “Paperless Tickets: Is Ticketmaster Hurting Consumers?” March 29, 2011) rather than mailing paper tickets weeks before the event. What are some reasons Ticketmaster is expanding this method of ticket delivery? How does this change the incentives in the secondary (resale) market?