Forman, ChrisGoldfarb, AviGreenstein, Shane2019-11-272016-05Forman, Chris, Avi Goldfarb, and Shane Greenstein. "Invention and Agglomeration in the Bay Area: Not Just ICT." American Economic Review: Papers and Proceedings 106, no. 5 (May 2016): 146–151.0065-812Xhttp://nrs.harvard.edu/urn-3:HUL.InstRepos:41946108We document that the Bay Area rose from 4% of all successful US patent applications in 1976 to 16% in 2008. This is partly driven by the increase in the prevalence of information and communication technology; however, even for patents unrelated to information and communication technology, we see a disproportionate increase in the share of US patents from the Bay Area. We interpret this growth as a trend to coagglomeration in invention across technologies, and we explore different dimensions of this trend.en-USTechnologyPatentsJournal Article2019-11-2710.1257/aer.p20161018