Vote-Value Disparity

Focus on the maximum disparity in the weight of a single vote between the most and least populous electoral districts.

1. Reiwa 7 (Gyo-Ke) 1 Population Proportional Election Litigation

2. Jurisdiction: Japan (2025-02-10)
3. Original Case: 令和7(行ケ)1 人口比例選挙請求事件
4. DefendantsElection Administration CommissionPlaintiffsKozo YamamotoHiroshi OkadaPlaintiff AttorneysMasashi YoritomiTeam of Constitutional ScholarsJudgesPresiding Judge Akira OjimaInstitutionsTokyo High CourtHouse of Representatives
5. Case Tags: Constitutional Litigation;Election Law;Judicial Review;Vote-Value Disparity