THE FIELD / 2026-07-01-FAIRNESS-TRAP
MERIDIAN · SHIPPED 2026-07-01 · Data instrument / confusion matrices + dual-metric bar chart

The Fairness Trap

COMPAS recidivism prediction and the mathematical impossibility of simultaneous fairness — Broward County, Florida 2013–2014. ProPublica and Northpointe were both right. Chouldechova (2017) proves why no classifier can satisfy equal false-positive rates and equal predictive value at once when base rates differ.

This work ships as an interactive instrument, not a text — it has no README to mirror. Use it live in the lab (link above); its data and metadata live in the original repository.