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stat.AP2025
Gerrymandering and geographic polarization have reduced electoral competition
Ethan Jasny, Christopher T. Kenny, Cory McCartan +8
Changes in political geography and electoral district boundaries shape representation in the United States Congress. To disentangle the effects of geography and gerrymandering, we…
stat.AP2024
Redistricting Reforms Reduce Gerrymandering by Constraining Partisan Actors
Cory McCartan, Christopher T. Kenny, Tyler Simko +3
Political actors often manipulate redistricting plans to gain electoral advantages, a process known as gerrymandering. Several states have implemented institutional reforms to addr…
stat.AP2020
The Essential Role of Empirical Validation in Legislative Redistricting Simulation
Benjamin Fifield, Kosuke Imai, Jun Kawahara +1
As granular data about elections and voters become available, redistricting simulation methods are playing an increasingly important role when legislatures adopt redistricting plan…