Sources Cited:

  1. Mandel, Michael. Building a Digital City, South Mountain Economics LLC. September 30, 2013.
    http://www.mikebloomberg.com/files/buildingadigitalcity.pdf
  2. “The New York City Tech Ecosystem,” HR&A Advisors. April 2014.
    http://www.hraadvisors.com/wp-content/uploads/2014/03/NYC_Tech_Ecosystem_032614_WEB.pdf