https://www.profitableratecpm.com/f4ffsdxe?key=39b1ebce72f3758345b2155c98e6709c
Proceedings of the National Academy of Sciences, Volume 123, Issue 5, February 2026. <br/>SignificanceCitizenship is widely believed to improve immigrants’ economic and social integration, but existing evidence relies on observational studies prone to selection bias. This study presents a randomized controlled trial to assess the causal …
