Media type: E-Article Title: Scale Effects in Invention? Evidence from Urban Areas in the U.S Contributor: Strumsky, Deborah; Lobo, Jose imprint: Elsevier BV, 2012 Published in: SSRN Electronic Journal Language: English DOI: 10.2139/ssrn.2194042 ISSN: 1556-5068 Keywords: Pharmacology (medical) Origination: Footnote: