Immigration-driven increases in ethnic/occupational diversity—measured by surname diversity in full-universe census—caused ↑ innovation in US counties, 1850–1940 Not compositional: robust to surname FE By my star GMU colleague Jonathan Schulz, +Posch & Henrich—> dx.doi.org/10.2139/ssrn...#EconSky

Does immigration cause reduced support for social policy? 73 research teams—using identical data—reached vastly different estimates. "Researchers must make analytical decisions so minute that they often do not even register as decisions." @breznaunate.bsky.socialdoi.org/10.1073/pnas...

This is an interesting study 👍. I had assumed that maybe it was correlated to population density (like big cities) but based on the visual maps that does not seem to be the case. 🤔