A quarter of US-trained scientists eventually leave

The fact that many PhDs leave is..normal..if you get few high impact publications you can find full time positions outside US, even as an associate professor and not just a researcher.

And the reason why many go to universities around the world for PhDs is not because they want to stay in that place necessarily but because you're more likely to fund your PhD research and get a high impact publication.

  > 25% of scientifically-active, US-trained STEM PhD graduates leave the US within 15 years of graduating.

For people missing the abstract, here it is and I'm giving emphesis to an important part.

  Using newly-assembled data from 1980 through 2024, we show that 25% of scientifically-active, US-trained STEM PhD graduates leave the US within 15 years of graduating. Leave rates are lower in the life sciences and higher in AI and quantum science but overall have been stable for decades. ***Contrary to common perceptions, US technology benefits from these graduates' work even if they leave: though the US share of global patent citations to graduates' science drops from 70% to 50% after migrating, it remains five times larger than the destination country share, and as large as all other countries combined. These results highlight the value that the US derives from training foreign scientists - not only when they stay, but even when they leave.***

While personally I'd staple Green Cards to every Ph.D. given to a foreign national, I simultaneously want them to go back to their home countries and make their countries better. To take the good from America, leave the bad, and to build lasting relationships between the countries. That's a win-win situation. Both countries benefit from this! As well as the people. (I'd staple Green Cards so the person can make that choice.)

I haven't read the whole paper (nor will I), but I get the impression that much of this will not be addressed in it. Perfectly okay, they're focused on the easier to measure parts. But let's also not forget that there is a whole lot more to the bigger picture here. A whole lot more than my comment even implies.

Today they are bloated with administration that is nothing but a cost center, meanwhile they eliminate tenured professorships and have classes taught by tenuous adjunct faculty who are paid poverty wages. Universities could easily right the ship by cutting the administration and focusing on teaching and research, but the people who need to make the decision to do that are the ones who would be cut.

The current information assymetry is exploitative. One of two things would happen under my proposed system: either nothing would change because students think they are getting a good deal as is or students don't think the deal is worth it which means that the current system only works because students are having the reality of the job market hidden from them.