Andreas Bjerre-Nielsen
associate prof. of econ and social data science | topics: education & algorithms | methods: stats, machine learning & econ. theory | dad
- 🚀 Postdoc in School Choice & Admissions Join our research team at Uni Copenhagen with @gandil.bsky.social, Neilson & Oosterbeek. Work with unique high-resolution admissions data, long-run outcomes, and a large-scale field experiment. 📅 Apply by Feb 8 candidate.hr-manager.net/ApplicationI...
- Relevant for #econsky #econjobmarket
- 1/ What does the social fabric of an entire country look like? We built a nation-scale social network of Denmark — 7.2 million people, 1.4 billion ties, 14 years of data. Here’s what we found 👇 📄 doi.org/10.1038/s415... #NetworkScience #Sociology
- 2/ We mapped social ties through five layers: 👨👩👧 Family 🏠 Households 📍 Neighborhoods 🎓 Classmates 💼 Colleagues …across 2008–2021. The result is a dynamic, multiplex network of the entire population.
- 3/ We find that social ties persist and resurface — former classmates become neighbors, colleagues become family. Connections across life stages create dense, overlapping social paths.
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View full thread11/ The work was led by Jolien Cremers, Benjamin Kohler, Benjamin F. Maier and done in collaboration with Stine N. Eriksen, Johanna Einsiedler, Frederik K. Christensen, @sunelehmann.com, David D. Lassen, Laust Hvas Mortensen. We are grateful for funding by the Villum Foundation.
- Reposted by Andreas Bjerre-NielsenWhile human behavior and the data describing it evolve over time, fairness is often evaluated at a single snapshot. Yet, as we show in our newly published paper, fairness is dynamic. We studied how fairness evolves in dropout prediction across enrollment and found that it shifts over time.
