Need more evidence that big-time sports play a major role in American universities? Duke economist and public policy professor Charles Clotfelter offers plenty of evidence in his recent book Big-Time Sports in American Universities.

Clotfelter discussed key themes from his book during a presentation today to the John Locke Foundation’s Shaftesbury Society. In the video clip below, he uses a salary comparison to show the growing importance of college football on many American campuses.

Click play below to watch the full 59:40 event.

You’ll find other John Locke Foundation video presentations here.