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 ..

過去的研究指出在 1996 至 2008 年臺灣四次總統選舉中，認同是一個影響選民投票抉擇的重要因素，在 2012 年的總統選舉中，認同是否仍然為一個重要的影響因素，是本文的主要探討問題。本文首先從認同理論的界限設定觀點，討論臺灣認同的階段，提出臺灣認同已從第一階段的「省籍」對立，到第二階段的「臺灣意識/中國意識」之爭，而在兩岸恢復交流後，因為認同界限的改變(臺灣 vs.中國)，進入到第三階段的「國家認同」層次。在第三個階段，臺灣與中國之間存在文化聯繫與政治..

Previous studies show that identity is an important factor in voting choice in the past four Taiwanese presidential elections between 1996 and 2008. This paper aims to explore whether identity still retains its impact on voting choice in the 2012 presidential election. The author starts with the discussion on the development of the Taiwan identity. Theoretically, identity can be regarded as a type of boundary setting and its development includes three stages. The first stage is the distinction between Benshengren and Mainland..