The Plight of the Graying Tech Worker. William Kerr, April 2019, Paper, “High-skilled immigration is dramatically transforming the tech sector in the United States. 1 In 1975, immigrants accounted for one in 12 inventors in America. Today it’s one in 3.5. This surge is due to immigrant concentration in science and engineering fields, and factors that make the United States attractive, such as access to the latest technologies and high pay levels. The impact has been most evident in advanced technology sectors in areas such as Boston and Silicon Valley, but non-tech companies including JPMorgan.Link