Sign in

Jordan D. Klein

@j-d-klein.bsky.social
275 followers 670 following 4 posts

Research Scientist @mpidr.bsky.social. PhD from @Princeton. Demography, social epi, quantitative & computational social science. he/him #rstats New on here after finally getting off that cursed site. Views my own. jordan-klein.netlify.app

PostsRepliesMedia
Jordan D. Klein @j-d-klein.bsky.social · 17/12/2025
New MPIDR press out today on our PNAS Letter (published this week): www.pnas.org/doi/10.1073/... Migration fell during the pandemic, but not in the ways we think. Looking beyond total flows shows how border closures curtailed outflows, stranded migrants, and produced unintended consequences.
pnas.org
The COVID-19 pandemic had heterogeneous effects on migration dynamics | PNAS
The COVID-19 pandemic had heterogeneous effects on migration dynamics
030
Reposted by Jordan D. Klein
Max Planck Institute for Demographic Research (MPIDR) @mpidr.bsky.social · 17/12/2025
Jordan D. Klein & Ingmar Weber published a Letter to the Editor in Proceedings of the National Academy of Sciences that opens a conversation on the findings of Chi et al (Measuring global migration flows using online data). www.demogr.mpg.de/go/PNAS-Letter-Ed…
World map with interconnected lines and text about migration during the pandemicDiagram shows estimated changes in the migrant population after a one-month travel ban for France, Germany, Italy, Spain, and the US by country of origin.Estimate of the change in the migrant population due to a one-month travel ban in France, Germany, Italy, Spain, and the US by country of origin.
0134
Jordan D. Klein @j-d-klein.bsky.social · 28/04/2025
Data + code available here: github.com/jordan-klein... #Epi #OpenScience #InfectiousDisease #HealthEquity
github.com
GitHub - jordan-klein/covid19-mortality-gradients-brazil
Contribute to jordan-klein/covid19-mortality-gradients-brazil development by creating an account on GitHub.
070
Jordan D. Klein @j-d-klein.bsky.social · 28/04/2025
I show how structural inequities—not differential intervention uptake—likely drove death gaps. Targeting vulnerable areas for vax + equal NPIs could’ve flipped this dynamic. Geo-spatial SEIRD model of counterfactual scenarios ➡️ fresh policy insight on making future outbreak control more equitable
180
Jordan D. Klein @j-d-klein.bsky.social · 28/04/2025
Hey Bluesky! 👋 First post here. Just dropped a preprint of the 1st national-scale, data-driven mechanistic model of socio-economic inequalities in COVID-19 mortality in 🇧🇷 doi.org/10.1101/2025...
doi.org
Must Whatever Goes up Come Down? Mortality Gradients in the Emergence of COVID-19
According to fundamental cause theory, even as disease burdens shift, social inequalities in mortality persist. Yet for emerging infectious diseases, isolating the roles played by underlying social di...
1324