Searcharxiv⌕ Search

arXiv subjects

Dror Shvadron

Publications and source records attributed to Dror Shvadron.

2 recordsLinked to original sources
arXiv2025

A Quarter of US-Trained Scientists Eventually Leave. Is the US Giving Away Its Edge?

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.

econ.GN↗
arXiv2025

Bread Upon the Waters: Corporate Science and the Benefits from Follow-On Public Research

Why do firms produce scientific research and make it available to the public, including their rivals? Prior literature has emphasized the tension between imitation risks from disclosure and scientists' preferences for publication. This study examines an additional managerial consideration: the value of follow-on research conducted by external scientists building upon firms' publications. Using data on U.S. public firms' scientific publications from 1990 to 2012, and a novel instrumental variable based on quasi-random journal issue assignment, I find that accumulation of follow-on research is associated with increased subsequent scientific investments, improved patenting outcomes, and greater employee retention by the originating firms. Benefits are more pronounced for firms with complementary assets and those operating in emerging research fields. Beyond serving as direct input into innovation, follow-on research provides external validation of internal research programs, helping managers allocate resources under conditions of scientific uncertainty. These findings demonstrate that firms benefit when their scientific disclosures inspire follow-on research by the broader scientific community.

econ.GN↗