傳統的研究智慧中，總統制和兩黨制的配套被認為是一個民主國家較容易運作的組合。主要的理由是兩黨制較不可能出現意識形態的極化，以及因為兩個政黨需要贏得中間位置的選票，其可以促成政黨之間較溫和及向心的競爭，因而有助於總統制的運作。然而，近年來，一些兩黨總統制國家發生嚴重的憲政危機，甚至促成民主衰退。為何這些兩黨總統制國家會走上民主衰退的道路，是本文所要探索的研究問題。首先，本文透過對於拉丁美洲兩黨總統制國家的個案分析發現，憲政結構的因素如總統和國會的權力抗衡會影響..

Past research argues that presidentialism and two-party systems are workable combinations that can facilitate democratic stability. The causal mechanisms are that ideological polarization is less possible to appear in a two-party system, that two parties needing to win votes from the center encourages moderation, and that the absence of the extremist parties and the centripetal nature of party competition favor democratic stability. However, in recent years, some presidential countries with a two-party system in Latin America..

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..

半總統制的設計，通常有一民選的總統及民選產生的國會;在此體制下，由於總統與國會雙元選舉的實施，國會理論上比一般單元選舉的內閣制 要有更強的監督制衡力量。但這種體制下的國會是否具備優於內閣制的監督能量，則在文獻上甚少探討，也成為本研究的最初動機。本文試著比較兩個半總統制的國家-臺灣與法國，並從較傳統的制度面切入，來探究兩國在制度設計安排上，賦予國會的監督潛能為何。這裡的制度設計安排，主要包括憲法及相關法規中賦予國會、委員會及個別議員的權力和資源配備;以及目前國..

The so-called semi-presidentialism designs a system that popularly elects both the president and the parliament. Under the dual-election design, the parliament theoretically should own more check and balance power than a parliament that gives rise to the cabinet. However, whether the parliament under semi-presidentialism in practice is indeed equipped with more oversight capacity than that of a cabinet system’s parliament has been rarely studied in prior literature. This paper tries to study this theoretically inte..

現今半總統制國家數目已經正式超越純粹總統制與內閣制，成為當今最多國家採用的政體類型。近來部分研究關注於半總統制國家的演化發展，除探討半總統制國家朝向內閣制傾斜的演化趨勢外，半總統制國家朝向「總統化」(presidentialisation)發展現象也成為學界關心的新研究焦點。本研究嘗試從半總統制國家朝向總統化發展的角度，探討總統化的定義內涵與演化動力、總統化對於政黨體系的影響，特別著重於總統化對於內閣性質以及內閣穩定度(stability of cabine..

The semi-presidential system has become the most popular regime type in the world, indicated by the number of states that adopted the system having surpassed that of purely presidential system and the parliamentary system since 2000. A number of major studies have recently focused on the evolution of semi-presidentialism; some of the researches have sketched the working mode of parlimentalization of semi-presidential system, and considerable studies have been paying attentions to the development of a semi-presidential system ..

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 ..