First of all, let’s explain that H1B is only issued to foreign staff engaged in professional work. Everyone’s work must be consistent with the major at the undergraduate or master’s level. Unio will introduce the difficulty of getting H1B application from different aspects of index for everyone.
Both the number of H1B applications and the number of approved applications fell from 2007 to 2009, and the number of H1B applications and the number of approved applications increased significantly from 2009 to 2016, which reflects the attitude of the US government to foreign workers to a certain extent.
In order to verify our point of view, Uno extracted the unemployment rate data of the United States from 2007 to 2017 and calculated the correlation coefficient with the US H1B application data and found that the US unemployment rate was significantly negatively correlated with the number of H1B visa applications at a 99% confidence level , The correlation coefficient between the two is about -0.83.
Another big inflection point was 2016-2017. In January 2017, Trump officially moved into the White House. Not long afterwards, he issued a travel ban against Middle Eastern countries and revoked DACA (Work Permit for Illegal Immigration). The most obvious attitude is: “Buy American goods, hire Americans”: H1B work visa tightening, etc. The U.S. Immigration Service stopped the expedited processing of H1B from April 2017, and did not resume the expedited processing of H1B until October.