title: Superlinear scaling for innovation in cities.
abstract: Superlinear scaling in cities, which appears in sociological quantities such as economic productivity and creative output relative to urban population size, has been observed, but not been given a satisfactory theoretical explanation. Here we provide a network model for the superlinear relationship between population size and innovation found in cities, with a reasonable range for the exponent.
authors.affiliation: Department of Health Care Policy, Harvard Medical School, 180 Longwood Avenue, Boston, Massachusetts 02115, USA. arbesman@hcp.med.harvard.edu
authors.forename: Samuel
authors.initials: S
authors.lastname: Arbesman
authors.forename: Jon M
authors.initials: JM
authors.lastname: Kleinberg
authors.forename: Steven H
authors.initials: SH
authors.lastname: Strogatz