# Professor Petra Moser's joint research on the economic effects stemming from the US' national immigration quota system of the 1920s is featured

1 Faculty News April 27, 2020 ![The Washington Post logo](/sites/default/files/styles/246w/public/assets/images/con_031074.jpg?itok=f6OME_Rm)>

Excerpt from [The Washington Post](https://www.washingtonpost.com/opinions/why-tom-cottons-immigration-idea-makes-no-sense/2020/04/27/40b43f92-88bf-11ea-9dfd-990f9dcc71fc_story.html) -- "[Moser](https://www.stern.nyu.edu/faculty/bio/petra-moser) has also researched the inverse of this phenomenon: restrictive immigration quotas, set in the 1920s, that kept out Eastern and Southern European scientists. Fields these scientists worked in recorded substantially less innovation — primarily because keeping out the foreign-born scientists made native-born ones less innovative."

[Read More](https://www.washingtonpost.com/opinions/why-tom-cottons-immigration-idea-makes-no-sense/2020/04/27/40b43f92-88bf-11ea-9dfd-990f9dcc71fc_story.html)