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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
71

投資等級債券信用價差外溢效果之研究-以Panel模型分析 / The Spillover Effect of Credit Spread on Investment Grade Bonds- The Panel Approach

林志彥, Lin, Chih-Yen Unknown Date (has links)
本研究目的在於探討投資等級債券信用價差是否存在外溢效果。信用價差是建構各種信用衍生性金融商品的基礎,惟目前學術界及業界都著眼在信用價差的拆解。信用價差可拆解成預期違約損失、稅的溢酬及信用風險溢酬。投資等級債券的信用價差來自於預期違約損失、稅的溢酬的部分較少,絕大多數來自於信用風險溢酬。信用風險溢酬係系統性影響信用價差的因素,此因素造成不同投資等級債券的信用價差間具有共整合的現象,進而引發外溢效果。然而並無人對於信用價差外溢效果作一深入探討。本研究利用目前學術界盛行的Panel模型的研究方法,對各種投資等級的債券的信用價差進行Panel Unit Root Tests、Panel Cointegration Tests及Panel Spillover Effect Tests,以求發現債券信用價差外溢效果存在與否的證據。 本文以iBoxx Index成份債券作為研究標的,利用Panel研究方法得到以下結論: 1.根據研究結果顯示,各種信評等級的債券的信用價差存在單根問題。 2.不同投資等級信評債券的信用價差擁有共整合關係。 3.不同投資等級信用評等的債券間信用價差外溢效果存在。且愈是相 鄰信評等級債券的外溢效果愈為顯著,例如BBB等級信用價差發生變動引發信評AAA等級信用價差變動的幅度便沒有AA等級信用價差變動引發AAA等級信用價差變動來得強烈。外溢效果係不對稱,當最高投資等級信評發生變動時,最低投資等級債券變動最為激烈;而最低投資等級信評發生波動時,最高投資等級債券發生變動的幅度就較小。 4.本研究支持不同債信評等的債券存在同向的外溢效果。 / This paper investigates the spillover effect in the investment grade bonds using the recently developed Panel Unit Root Tests, Panel Cointegrations Tests, Panel FMOLS and Panel DOLS techniques. Investment grade bonds’ credit spreads are found to be nonstationary and to be cointegrated in panels. This paper finds evidence of spillover effects.
72

不動產投資信託與直接不動產投資關係之探討 / The relationship between real estate investment trusts and direct real estate investment

邱逸芬, Chiu, Yi Fen Unknown Date (has links)
台灣不動產投資信託(T-REITs)自2005年發行至今已逾六年,然其市場表現仍不如發行之初所預期。過去國內已有許多研究針對T-REITs市場發展進行探討,然而目前就T-REITs與直接不動產投資市場價格表現間之相關研究尚付之闕如。有鑑於此,本研究藉由共整合與Granger因果關係檢定,檢視REITs與直接不動產市場間之關聯性,了解台灣與美國之REITs市場表現差異及其影響因素,進而作為改進T-REITs運作機制或架構之參考依據。 實證結果發現,美國之REITs與直接不動產市場之間存在共整合關係。此結果表示,長期而言,這兩者可能具有相似之風險分散效益。此外,透過Granger因果關係檢定發現REITs領先於直接不動產,乃因前者市場較具效率。另一方面,台灣之REITs與直接不動產市場之間則不具有共整合以及領先或落後關係,然直接不動產當期價格仍會受到本身與REITs之前期價格影響。 本研究進一步分析台、美兩國實證結果之差異原因如下:資料的樣本期間、REITs市場規模、存在於T-REITs市場之集中性風險以及潛在的代理問題。其中,針對T-REITs潛在代理問題,本研究藉由分析股票與T-REIT報酬率之波動性,發現T-REIT之不動產管理機構若與母集團相關者,則其市場表現較差。因此,我們得出T-REITs市場發展主要是受限於代理問題之結論。本研究成果不僅有助於改善T-REITs市場效率,亦可提供學術與實務之參考。 / The mechanism of Real Estate Investment Trusts in Taiwan (or T-REITs) was launched in 2005, however, T-REITs market did not perform as expected. What caused the limited development of T-REITs market? Current literature on the performance between T-REITs and direct real estate investment is limited. Through the cointegration and Granger causality tests, the purpose of this study is hence to explore the short-term and long-term dynamics between REITs and direct real estate markets in the U.S. and Taiwan, respectively. This study presents evidence of the cointegration relationship between REITs and direct real estate in the U.S. It implies that the diversification properties of these two assets are likely to be similar over the long horizon. According to the Granger causality test, REITs leads direct real estate due to the market information efficiency. These findings are consistent with those of previous studies. On the other hand, we find no cointegration and lead-lag relation between T-REITs and commercial real estate. Moreover, the current commercial transaction price is affected by both its and T-REIT previous price. By comparing the difference between the results of these two countries, there are several possible explanations for the different results between the U.S. and Taiwan, including difference in sample period, market capitalization, concentrated risk, and most importantly, the potential agency problem existing in T-REITs market. Finally, the underperformance of parent-related management T-REIT is verified through the volatilities of stock and T-REIT returns. Therefore, we conclude that the limited development of T-REITs is caused by the agency problem in REITs market. Results of this study may provide T-REITs market for improving its efficiency, as well as for the reference for both academics and real practices.
73

當前台灣民主困境的出路之探索:權力分享式民主與審議式民主的取徑 / Approaches to the resolution of democratic predicament of current Taiwan via power-sharing democracy and deliberative democracy

袁碩成, Yuan, Shuo Cheng Unknown Date (has links)
本文旨在探討透過權力分享式民主與審議式民主的取徑,來緩解當前台灣民主困境的可行性。 首先,本文討論了當前台灣民主困境的成因,以及藍綠雙方的根本差異。同時指出,台灣當前的民主困境可被視為一種極度分裂社會的狀態來理解,並將台灣民主困境的關鍵難題,定位在認同差異與政治不信任。 其次,本文從既有的權力分享式民主的文獻中,梳理出有助於解決當前台灣民主困境的「規範性概念」與「經驗性證據」;做為權力分享式民主對當前台灣民主困境的回應。經過分析後發現,利用協合式民主去處理當前台灣民主困境,應是個值得嘗試的方向。若將協合式民主中菁英間的決策模式,改由審議取代議價,則此種修正型的協合式民主可為長期解決族群衝突提供更多的可能性。 繼之,本文從既有的審議式民主的文獻中,梳理出有助於解決當前台灣民主困境的「規範性理念」與「經驗性證據」,作為審議式民主對於當前台灣民主困境的回應。經過分析後發現,理論上,審議式民主的理想審議是可以解決當前台灣民主困境,只不過理想言說情境在現實生活中很難達成。但是這並不排除理想言說情境是可以近似達成的。不過文獻中迄今仍無經驗證據顯示,單獨利用審議式民主可以解決在極度分裂社會中的國家認同問題。為了讓對立雙方願意自由參加對話、願意相互尊重,以及願意理性溝通,必須提供誘因,而權力分享就是一種誘因。此外,為了判斷對話或審議環境是否接近理想言說情境,必須要有量化的測量工具,而話語品質指數(DQI)就是一種工具。因此,權力分享與DQI,就是強化審議式民主的兩種有效工具。 面對當前台灣民主困境,本文最後提出了一個結合協合式民主與審議式民主(即修正型的協合式民主)的現階段策略的建議。 / This thesis explores the feasibility of mitigating ethnic conflict of current Taiwan employing the methods of power-sharing democracy and deliberative democracy. First of all, the causes and the key difficult problems of democratic predicament, and the dispute in national identity between the pan-blue and pan-green camps, as those currently exist in Taiwan, are discussed in greater detail. The key difficult problems appear to be conflict in identities and political distrust. Next, based on the existing literature of power-sharing democracy, this thesis identifies the normative ideas and empirical evidences that are relevant to the settlement of democratic predicament of current Taiwan. After an in depth analysis, it concludes that the use of consociational approach to manage democratic predicament of current Taiwan should be the direction worth trying. The so-called modified consociational democracy, which is formed to meet the deliberative requirements of publicity and reciprocity, by replacing consociational decision making with deliberation, may provide more possibility for longer-term goal of ethnic conflict resolution. Likewise, based on the existing literature of deliberative democracy, this thesis identifies the normative ideas and empirical evidences that are relevant to the settlement of democratic predicament of current Taiwan. After an in depth analysis, it concludes that, theoretically, the use of ideal deliberation approach appears capable of dealing with the democratic predicament of current Taiwan. Although it is not possible to create Habermas’s ideal speech situation on a precise level, it is possible to achieve ISS approximately. However, there did not exist any empirical evidence in the literature to demonstrate that the application of deliberative democracy alone may provide conflict resolution of the national identity problem in deeply divided societies. In order to let both sides of the conflicting groups be willing to participate freely in the dialogue, be willing to respect one another, and be willing to communicate rationally, it is necessarily to provide both sides with power-sharing incentives tailored to make both sides feel absolutely secure. In addition, in order to evaluate how close the dialogue or deliberative approaches the conditions of ideal speech situation, it is necessarily to have a quantitative measuring instrument at our disposal and the discourse quality index (DQI) is such an instrument. Therefore, power-sharing and DQI tend to form two effective tools for strengthening the deliberative democracy. Finally, this thesis proposes the modified consociational democracy as the present stage strategy for the resolution of democratic predicament of current Taiwan.
74

中央地方立法權限衝突與法規競合-從司法院大法官釋字第666號解釋談起 / 無(null)

楊秦岳 Unknown Date (has links)
地方自治是近代憲政的有機組成部分。無論對任何一種憲法體制來說,都需要把地方自治和地方分權問題作為民主國家不可或缺的內容,予以明確定位。 與此同時,很多國家和國際組織重申地方自治原則。1985年通過的多國條約《歐洲地方自治憲章》,1985年通過、1993年再次通過的《世界地方自治宣言》加重了對地方自治的關注,這意味著在今天,地方自治和地方分權的積極意義在世界開始得到討論,並逐步得到明確。與地方自治和地方分權相伴隨的是地方公共團體事務優先原則的確立,即市鎮村最優先、然後是省市縣優先的事務分配原則,而中央政府只負責全國民、全國家性質的事務。地方自治可定義為,國家特定區域的人民,由於國家授權或依據國家法令,在國家監督下自行組織法人團體,用地方的人力財力物力自行處理自己的事務的政治制度。 在中央地方立法權限上,以我國憲法為例,憲法第171條規定:「法律與憲法牴觸者無效。」第172條規定:「命令與憲法或法律牴觸者無效。」另外,中央法規標準法第11條:「法律不得牴觸憲法,命令不得牴觸憲法或法律,下級機關訂定之命令不得牴觸上級機關之命令。」在中央法制範圍內建構憲法、法律、命令的三層的上下位階關係。論及地方法規與中央法規之位階關係,由於地方自治團體所制定之地方法規,屬國家法律體系內之一部分,為求國家法律體系之完整及統一地方法規自應受法律位階理論之拘束。 故我國憲法第116條規定:「省法規與國家法律牴觸者無效。」、第125條規定:「縣單行規章與國家法律或省法規牴觸者無效。」。 在司法院大法官釋字第666號解釋中,我國社會秩序維護法第80條禁止性交易,究竟限制人民何種憲法上權利,主要有二種見解:其一主張涉及性自主權,其二主張涉及工作權。 後者最重要理由是提供性服務以收取對價應認為是一種職業而應納入憲法職業自由之討論。憲法第15條職業自由所稱之職業,原則上只要是人民用以謀生的經濟活動即足當之,毋庸沾染太多道德或價值判斷的色彩,至於該職業應否管制或如何管制始為正當,則是後續的問題。 性如果可能作為一種謀生的工具,人民有沒有以性作為謀生工具的自由?性販售行為可否受到憲法對職業自由的保障? 如果立法者不是採取全面禁止的手段,而是合目的性地鑑於政策需要,對從事性工作之方法、時間、地點等執行職業之自由,予以適當限制,則由於「根據職業自由的三階理論」此類管制手段性質上屬寬鬆之合理審查的範疇,立法者反而能獲取更大的政策形成空間。 爰上所述,本論文提出主要研究問題如下:宜蘭縣娼妓管理自治條例對於性販售行為僅僅有所管制,而非全面禁止,是否與社會秩序維護法第80條牴觸?宜蘭縣娼妓管理自治條例規範位階為何?是否為法律?宜蘭縣娼妓管理自治條例與與社會秩序維護法效力關係又為何?中央地方權限劃分對宜蘭縣娼妓管理自治條例效力影響為何?是否可直接逕依中央法律,亦即依據社會秩序維護法處行政罰?有無侵犯宜蘭縣政府地方自治權限空間疑慮?處罰之理由或相關理論基礎為何?中央地方法規衝突對憲法上性工作者之工作權保障程度及影響為何?地方政府的自治權限有無憲法保障且不容中央恣意侵犯領域?中央或地方法規其中之ㄧ經司法院大法官解釋宣告定期失效或立即失效時有何種影響? 兩者法律關係影響為何?究為取代關係或遞補關係?

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