This study presents the results of a representative survey of over 2500 Ukrainian scientists. The data suggest that by the Fall of 2022, about 18.5% of the population of Ukrainian scientists fled the country. Notably, these emigrant scientists were amongst the most research-active in Ukraine. However, a significant portion of these migrant scientists are under precarious contracts at their host institutions. Of the scientists who stayed in Ukraine, about 15% have left research, and the others experience a marked reduction in research time. A large number of stayers have lost access to critical input for their research (23.5%) or cannot physically access their institution (20.8%).
The effects of war on Ukrainian research
