I noticed that the migrants he was tracking were all "foreign faculty who had their first US faculty appointment after 1993". I would think that receiving a fa

I noticed that the migrants he was tracking were all "foreign faculty who had their first US faculty appointment after 1993". I would think that receiving a faculty appointment would be a relatively powerful reason to stay. I do realize that those who get faculty appointments can be considered the "most successful" PhD graduates, and thus their return home would be more beneficial to their home country. However, I'd be interested if they numbers were significantly different for students that either received their PhD and went into industry, or immediately returned home.