Our Research

New Research


 Why Rules and Systems Matter:

 Lessons from Around the World

Gender Parity Index

The Gender Parity Index measures women's representation across the local, state legislative, state-wide executive, and federal levels and grades them according to their performance. 

Gender Parity Index  GPI Report  GPI Methodology

Our 2018 Report is the fifth in a series leading to the year 2020, the centennial of the 19th Amendment. The report finds that women are underrepresented at the national, state, and local level, and that parity for men and women in elected office is unlikely to occur without structural changes in recruitment rules, electoral systems, and legislative norms.


2017cover.jpg GPISummary.jpg Canva_GPI_image_2018.png
 2018 - Full GPI Report 2017 - GPI Summary

2018 - State Grades Map



Reports on the State of Women's Representation


 GPI2016.jpg GPI2015_2.jpg  GPI2013.jpg 

2016 - Eve of the Election

2015-2016 - Full Report

 2013-2014 - Full Report



Additional Research


PACCover.jpg  BayArea.jpg   Counties.jpg

Individual and PAC Giving to Women Candidates

Impact of Ranked Choice Voting on Representation

County Data on Women and People of Color