noun
vote-value disparity; malapportionment
A political term referring to the inequality in the weight of a single vote across different electoral districts, often discussed in the context of constitutional challenges in Japan.
最高裁は一票の格差が憲法違反かどうかを判断した。
The Supreme Court ruled on whether the vote-value disparity was unconstitutional.
選挙制度改革の焦点は一票の格差の是正だ。
The focus of electoral reform is correcting the malapportionment.