Writer John Buntin, reading Glaeser's Triumph of the City, says that while Glaeser questions Jacobs strategies, "...the similarities between the Princeton- and Harvard-educated economist and the Scranton Central High School graduate are more striking than their differences. Glaeser has described himself as a "progressive libertarian." According to sociologist Nathan Glazer, Jacobs also had pronounced libertarian tendencies. Both are suspicious of central planning, and both celebrate the role small businesses play in thriving cities. Indeed, even the issues where Glaeser disagrees with Jacobs often rest on a misunderstanding."