本文檢視全世界民主國家在不同總統與國會選制的搭配組合下，政黨體系有何不同。本文發現，就國會選制而言，國會選舉採比例代表制的國家， 其國會有效政黨數在整體上明顯多於國會選舉採單一選區相對多數制的國家;而不論是國會選舉採比例代表制或是採單一選區相對多數制的國家，有總統直選制度之國家的國會有效政黨數，明顯少於無總統直選制度的國家。 進一步言，在國會選舉採比例代表制的國家中，若總統選舉採相對多數制，其國會有效政黨數會少於總統選舉採兩輪決選制的國家;不過，在國會選舉採..

This study comprehensively observes the party system under different collocations of presidential and parliamentary electoral system in democracies all over the world. Regarding parliamentary electoral system, it is found that the effective number of parliamentary parties in the countries adopting proportional representation system(PR), overall, is apparently larger than that in countries adopting plurality with single-member-district system(SMD), and that in countries holding direct presidential elections is clearly smaller ..

本文旨在探討台北縣選民在 2005 年縣長與鄉鎮市長兩個不同層級選舉中的一致與分裂投票行為。本研究的重點在強調:欲瞭解選民於不同層級選舉中的投票行為，不但要關注各個層級選舉影響因素的異同，更需考量到兩項公職同時選舉時可能產生的相互影響。因此在本文中，除概述台北縣選民在這兩種選舉中的一致與分裂投票情形之外，亦嘗試以隨機效用(random utility)理論，推演兼顧上述兩個特性的雙變數「聯立式機率單元模型」 (simultaneous equations p..

This article examines the first ever simultaneous local elections of county and township magistrates in Taiwan in December, 2005. We argue that in order to fully understand the voting choices in simultaneous inter-level elections scholars need to take account not only those factors affecting each level’s election but also the interactions between different levels. There are two competing theories concerning the flow of causal influences, i.e., the bottom-up mass mobilization hypothesis and the top-down coat-tail effect ..