Cato has published a number of pieces relevant to the new presidential proclamation restricting foreign workers.
1) 100% of H-1B Employers Offer Average Market Wages—78% Offer More https://www.cato.org/blog/100-h-1b-employers-offer-average-market-wages-78-offer-more
1) 100% of H-1B Employers Offer Average Market Wages—78% Offer More https://www.cato.org/blog/100-h-1b-employers-offer-average-market-wages-78-offer-more
2) Don’t Ban H-1B Workers: They Are Worth Their Weight in Innovation https://www.cato.org/blog/dont-ban-h-1b-workers-they-are-worth-their-weight-patents
3) H-1B Workers Are Helping to Save Jobs During the COVID-19 Recession https://www.cato.org/blog/h-1b-workers-are-helping-save-jobs-during-covid-19-recession
4) Facts About the J-1 Visa Summer Work and Travel Program https://www.cato.org/blog/facts-about-summer-work-travel-program
5) The Facts About the L-1 Visa Program https://www.cato.org/blog/facts-about-l-1-visa-program
6) H-2B Guest Worker Wages Exceed Every State Minimum, 60% Higher On Average https://www.cato.org/blog/h-2b-guest-worker-wages-exceed-every-state-minimum-60-higher-average
7) Why Ban Foreign Workers From H-2B Jobs U.S. Workers Rejected? https://www.cato.org/blog/why-ban-foreign-workers-h-2b-jobs-us-workers-rejected
8) Three Reasons Why Immigrants Aren’t Going to Take Your Job https://www.cato.org/blog/three-reasons-why-immigrants-arent-going-take-job
And @CatoInstitute adjunct Stuart Anderson with @NFAPResearch has published this analysis showing computer occupation unemployment has declined since January https://nfap.com/wp-content/uploads/2020/05/Analysis-of-Employment-Data-for-Computer-Occupations.NFAP-Policy-Brief.May-2020.pdf