title: Engines of innovation.
authors.affiliation: Harvard University, USA.
authors.forename: Edward
authors.initials: E
authors.lastname: Glaeser
mesh_terms: D003405:Creativity; D003906:Developing Countries; D006801:Humans; D007398:Interpersonal Relations; D011156:Population Density; D012919:Social Behavior; D014505:Urban Population / Q000639:trends*