Abstract

Do the policy preferences expressed through political participation represent the citizens as a whole? Previous studies argue that there is no ideological bias in voting participation in Japan. However, previous studies have only analyzed Japan up to 2010, and it is unclear whether ideological bias was consistently absent in voting participation in the 2010s. In the 2010s, ideological issues, such as the maintenance of nuclear power plants or the acceptance of collective self-defense, emerged in Japan, and the two major political parties, the Liberal Democratic Party and Democratic Party of Japan, became increasingly polarized. Considering these changes, the influence of ideology on political participation may be growing. Therefore, this paper examines the relationship between people’s ideological positions and political participation using voter surveys conducted between 2001 and 2017. I find that since 2012, the more ideologically extreme Japanese voters are, the more they participate in voting. Furthermore, the same is true for other forms of participation. In general, the voices of ideologically moderate Japanese are becoming less represented by political parties and politicians.

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