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Electoral issues

Dynamics of Inter-Party and Intra-Party Coalition Building in Japan (pdf 219K)

Under what conditions do legislators defect from a dominant political party? Dr Yusaku Horiuchi and Thiam Chye Tay ask this question with a focus on the case of Japan's Liberal Democratic Party (LDP) split in 1993.

Based on a nested-game model, which depicts factions engaging in intra-party and inter-party coalition building simultaneously in two arenas, they argue that the anti-mainstream faction defected because it was marginalized and had little chance of being powerful within the LDP while the possible change in the electoral system and the success of a new conservative party enhanced its expectations of gaining power within the Diet.

 

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