Tens of thousands of Hilary Duff fans are battling it out for tickets to her new tour of intimate venues. McGill University associate professor Vivek Astvansh says the opportunity to go to concerts has declined thanks to a combination of Ticketmaster creating a higher demand and brokers buying tickets in bulk using bots. »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS For breaking news, video, audio and in-depth coverage: https://www.cbc.ca/news Follow CBC News on TikTok: