4 papers
Pulses, waves, and cascades in collective migration dynamics
Niraj Kushwaha, Woi Sok Oh, Edward D. Lee
Decisions to migrate depend on others' decisions. Dependence can produce nontrivial dynamics. We propose a minimal migration model that accounts for social influence alongside indi…
Collective contributions to polarization in political voting
Edward D. Lee
Politics around the world exhibits increasing polarization, demonstrated in part by rigid voting configurations in institutions like legislatures or courts. A crux of polarization…
Common indicators hurt armed conflict prediction
Niraj Kushwaha, Woi Sok Oh, Shlok Shah +1
Are big conflicts different from small or medium size conflicts? To answer this question, we leverage fine-grained conflict data, which we map to climate, geography, infrastructure…
Innovation-exnovation dynamics on trees and trusses
Edward D. Lee, Ernesto Ortega-DÃaz
Innovation and its complement exnovation describe the progression of realized possibilities from the past to the future, and the process depends on the structure of the underlying…