New research: Elections are 2.25 times more likely to have competitive elections in districts drawn by independent redistricting commissions. About 20% of US House districts now drawn by ind. commissions.
Link to ungaged, open access article here: https://www.cambridge.org/core/journals/ps-political-science-and-politics/article/independent-redistricting-commissions-are-associated-with-more-competitive-elections/00F260DCEB81B3BAC07D2A4ADBDA9CE0
The article also shows that courts, politician commissions, and independent commissions all yield more competitive maps than legislative-drawn maps. This figure shows how much higher electoral competitiveness is in each relative to baseline of legislative drawn maps.
Published in @ps_polisci by @mattnelsonphd
The research is consistent with earlier work (e.g., Carson, Crespin, Williamson; McGhee) that only looked at data through 2010 before there were a lot of new non-legislative methods of drawing districts implemented.
@mattnelsonphd's full article in @ps_polisci is available here, open access and ungated: https://www.cambridge.org/core/journals/ps-political-science-and-politics/article/independent-redistricting-commissions-are-associated-with-more-competitive-elections/00F260DCEB81B3BAC07D2A4ADBDA9CE0
Christian Grose