混合式選制融合了多數決與比例代表兩種選制的精神，不過關於此種選制兩票架構對投票的影響，有兩種截然不同的主張:一是認為兩票各自獨立運作，其影響可以獨立估算;另一派則主張兩票抉擇會相互影響，亦即具有所謂連動效果(interaction effects，或稱感染效果 contamination effects)的存在，因此必須綜合考量兩票架構的互動關係。而在日本施行的混合選制，又因允許候選人在兩種選票間重複提名，更使得其兩票間的連動關係益形複雜。 ..

The Mixed Electoral System combines the spirits of plurality and proportional representation. The way two-ballot structure influencing the voting behavior however is not settled. Of the two distinctive schools, one believed that two ballots work separately and therefore, their influences should be estimated independently. The other group advocated the existence of contamination effects (or interaction effects), and believed that it is necessary to consider the interaction between two ballots. As for the Mixed- Member Majorita..

政黨輪替是當代民主政治發展的重要條件。日本的民主政治雖然在戰後新憲法公布後即開始進行，但自 1955 年起便形成自民黨一黨獨大的政治體制。這是因為，日本戰後的政黨輪替思維，受限於國內政治、經濟、社會與政黨條件等國內外環境的影響，使其無法在民主政治發展過程中具體展現。冷戰結束後政經情勢的轉變，讓日本的政黨輪替思維獲得解放，也促成了日本民主黨的成立與發展。本文主旨是藉由民主理論與近代日本政治發展觀點，思考政黨輪替思維在日本的演變歷程，並以日本民主黨的成立背景、組..

Party alternation is an important condition for the development of modern democracy. Although the Japanese democracy after World War II proceeded from the enforcement of the new constitution, LDP dominated the Japanese politics since 1955. The party alternation thinking in Japan was limited by the situations of domestic and international environment such as politics, economics, society and parties. The end of the Cold War liberated the party alternation thinking in Japan, and led to the formation and development of DPJ. This ..