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 ..

法國與臺灣的政府體制都屬於半總統制，法國的憲政經驗中曾出現過三次的「左右共治」，臺灣的憲政經驗中卻從未出現過「藍綠共治」，何以如此?這是本文欲探討的課題。本文藉助賽局理論作為分析工具，探討制度安排如何影響行動者間的策略互動，以致最後產生了共治與否的差異。法國與臺灣擁有不同的選舉制度和不同的國會保障機制，在兩種制度因素的交互作用下，會引導分屬不同政黨陣營的總統和國會多數產生不同的政治計算與策略互動，最終導致法國出現「左右共治」，臺灣卻沒有出現「藍綠共治」。 ..

Both France and Taiwan’s political systems are semi-presidential. However, “cohabitation” in French constitutional experience has occurred three times while Taiwan has never seen “cohabitation” until now. Finding the reason for this difference is the central question of this paper. By using the game theory as an analysis tool, the paper explores how the institutional design influences the actors’ strategic interactions, which underlies the discrepancy between France and Taiwan in “coh..

由於先天即存在應然與實然的落差，加上後天多元研究取向所導致立論之分歧，使得半總統制常有評價之爭議。因此，論者在研究中除了應正確認識半總統制的理論內涵，亦需謹慎進行案例的比較或應用，始能產生更精確、細緻的研究成果。本文出於這樣的關懷，將從理論層面出發，透過相關文獻檢閱與不同研究方法之回顧，重新發現半總統制的分析焦點及不同運作類型之內涵及變遷方向。再者，本文也將進行半總統制案例的初步檢驗，以確認半總統制國家實際運作的不同樣態與其中原因。 ..

Since Maurice Duverger proposed the concept of semi-presidentialism in 1980, disputes have increasingly been raised among researchers. Given the gap between norms and operations of semi-presidentialism, as well as the complexities among the relationships of president, prime minister, and congress in the operations of semi-presidential countries, this paper develops a theory-driven comparative framework of this concept. Through re- examining the definitions of semi-presidentialism and the methodology of analyzing its operation..

受到越來越多新興民主國家制訂半總統制憲法的影響，對於半總統制的相關研究也越來越受到重視。依照學界對半總統制的定義，威瑪共和與芬蘭都在 1919 年設計出符合半總統制內涵的憲法，可說是當代最早的兩個半總統制的個案。這兩個國家的憲政運作卻有完全相反的結果:威瑪在 1933 年崩潰，而芬蘭先是渡過經濟危機，更在 80 年代逐漸往議會制轉型。本文擬就制度與非制度因素的互動，討論這兩個個案運作的迥異結果。本文將從憲法理論做比較的出發點，分析兩種不同理論基礎的半總統制憲..

As democratization spread in Eastern and Central Europe over the last two decades, Semi-Presidentialism has become a concept with more attention paid when discussing constitutional issues. By definition, the Weimar Republic and Finland were two of the initial experiments of semi- presidentialism. However, the constitutional practices in the Weimar Republic and Finland are worlds apart. Both semi-presidential, the Weimar Republic had broken down but Finland became a quasi-parliamentary democracy. This paper intends on discussi..