Source of above quote:
Wisconsin in the Top 10 Best States for Business for the First Time Ever in Chief Executive Magazine Ranking. (Office of the Governor, 5/8/2017)
There is no mention of the UW System in Walker's news release. Not surprising, considering his behavior as Governor.
Study: Interest in STEM Fuels Growth in Number of International Students in U.S. (US News, 11/14/2016)
Data check: Why do Chinese and Indian students come to U.S. universities? (Science, 11/14/2016)
Put this following sentence in 2017 President Trump perspective. Those pursuing undergraduate degrees in so-called STEM (science, technology, engineering, and mathematics) fields make up 45% of the undergraduate total, and their share of the graduate pool is even larger.