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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.
1

投資人風險分散行為研究:理論與實務的差距 / Do Investor Diversivy the Portfolio According to Portfolio Theory?

陳虹君, Chen, Hung Chum Unknown Date (has links)
以往有關投資人風險分散行為的研究,較少以時間序列資料,探討投資人投資行為與時間的變化關係,本研究採用台灣證券交易所的每日交易成交資料,從西元1990年1月至西元2005年12月長達16年資料,模擬投資人的投資組合,對台灣股市投資人持股及交易狀況做描述性分析,並且分析投資人持有股數、歷年來曾交易過股票支數、單年進行交易的股票支數、交易次數與交易量,這五個變數與時間的變化關係。 以投資人持有股票支數作為風險分散程度的指標,發現台灣投資人平均持有股數逐年上升,從1990的5支,逐年成長到2005年的31支,歷年來曾投資過的股票支數更多,2005年時成長到128支,但是每年投資人會進行交易的股票支數卻變化不大,平均是17支,這代表了短期內投資人能夠注意或有能力與資金操作的股票支數有限,但隨著報章雜誌報導、類股輪動,投資人因注意力轉移而買進不同的新股票,長期來看,投資人可能因長期投資策略、零股交易不盛或處分效果,不賣出舊股票,卻持續交易新股票,使得平均持有股數逐年上升。但理論上,在同樣金額下增加持有股數才能算是增加風險分散程度,但是實際投資人增加持有股數往往是因為可用資金增加、受報章雜誌報導等影響,而不是傳統財務理論所說的為了增加風險分散程度。 本研究進一步探討不同特性的投資人,其投資行為隨時間的變化。發現不論是原先持股少或持股多的投資人,皆傾向逐年增加持股支數,會維持在原先持股水平的比例相當少。並且投資人當下決定投資的行為與經過時間累積後呈現出的投資行為並不相同。本研究對台灣股市投資人真實的投資行為更進一步了解,有助於學者在建構解釋投資行為的理論模型時的參考。
2

業務分散程度對銀行績效的影響-以全球銀行為例 / Does Diversification Cause Diversification Discount – Banking Industry Around the World

賴冠宇, Lai,Kuan Yu Unknown Date (has links)
本文針對銀行業的業務分散程度與績效的關係,做實證上的研究。以一九九五年至二零零四年之間全球金融機構為研究對象,實證結果發現,業務較集中的金融機構會比業務較分散者的績效來得好,而且隨著分散的程度提高,績效變差的情況會更為明顯。除此之外,當銀行的本業是非利息收入時,提高業務分散程度所造成的績效降低會比本業為放款的銀行更為明顯。實證結果同時也指出,政府機關與民間的監督機制都能夠有助於減輕此種業務分散帶來的績效下降。 / This study examines the relationship between diversification of financial activities and performance in banking industry. Using cross-country data of financial institutions from 1995 to 2004, the empirical results suggest that focused banks outperform diversified banks. Moreover, I find that diversification discount declines as banks go diversified. Results show that banks which focus previously on noninterest income would suffer heavier diversification discount than loan-specialized banks while extending their activity into the other area. Results also suggest that the supervisory power from regulatory authorities and the policy of private-sector monitoring can help alleviate diversification discount that banks would experience when they go diversified.
3

企業上市後股權分散之研究---探討台灣家族及非家族企業

許家華 Unknown Date (has links)
本文探討台灣家族及非家族企業上市後股權分散之路徑及動機是否相同。從初步統計可發現兩類企業內部人持股在初步公開上市後逐漸且穩定地分散。 使用Pobit模型發現,家族之永續傳承考量下,家族成員認定家族企業為家族系統之衍生,因此內部人持股降低因素並非由代理因子所造成。而歸結多種方式分析,可發現市場因子,即企業股票之流動性為主要且一致造成股權分散之因素。文章後段使用不同的家族企業認定方法,我們仍然得到相同地結論。 文章最後階段反向思考家族控制進入及離開企業之決定因素,可發現代理因子在非家族企業轉變為家族企業中扮演主要角色,而另一方面,市場因子則在家族企業轉變為非家族企業扮演主要角色。
4

使 Eclipse 平台具備遠端外掛程式功能之研究 / Enhance Eclipse platform with remote plug-ins

林庭瑋 Unknown Date (has links)
Eclipse 是目前最廣受歡迎的軟體工具整合平台,其可擴充的架構,允許第三方撰寫名為 Plug-in 的擴充套件將既有的或是新開發的工具程式整合至此平台。然而隨著 Eclipse 的普及以及可用工具套件的增加,衍生的困擾則是幾乎每一套 Eclipse 平台都會裝載過多的工具。雖然 Eclipse 的架構提供了諸如 Plug-in 的延遲載入(Lazy-Loading)、快速裝載與更新等功能,讓 Eclipse 平台具有相當高度的可延展性(Scalability),但整體效能還是會因為裝載過多的工具程式而下滑。 為了解決上述問題,本研究提出一套名為 Remote Plug-in 的解決方案,允許使用者或是廠商將原生(Native)或非原生的工具發布到遠端站台,並透過本研究提供的開發工具快速產生包裝程式,讓標的工具能以 Web Services 的型式發布到站台上供使用者叫用。另一方面,需要使用這些工具服務的 Eclipse 平台則可以透過本研究提供的輔助 Plug-in 提供之功能,直接叫用這些工具服務,效果則有如使用安裝於相同電腦的 Plug-in 一樣。 此作法除了能降低 Plug-in 的安裝數量,進而改善 Eclipse 平台的整體效能外,也能減少許多不常使用工具的裝卸。此外,Remote Plug-in 架構的其他優點在於讓用戶得以使用在其平台無法安裝執行的工具程式,軟體商亦可經由發布 Remote Plug-in 加強對軟體的記錄控管。 / Since its inception in 2001, Eclipse has quickly become the most popular platform for software development, partly thanks to its extensible architecture, which allows third parties to easily integrate their software tools into the platform in the form of plug-ins. As the quick increase and abundance of free or cheap Eclipse plug-ins available to the public, coming up also is the problem that most users install too many plug-ins than tolerable in a platform. Although the designers of Eclipse have develped mechanisms such as Lazy-Loading [42], and quick installation and update subsystem to make Eclipse scalable, the overall performance is inevitably degraded for the installation of too many plug-ins. In order to overcome this problem, we propose in this thesis a method called remote plug-ins which can enable the distribution and sharing of plug-ins in remote sites. Users or ISVs (independent software vendors) can deploy their tools on remote sites and use the tool we have developed to wrap them as web services accepting requests from Eclipse platforms. On the other hand, users needing services of remote plug-ins could install in their local Eclipse the proxy plug-in which we developed for requesting services of remote plug-ins. With the help of the proxy, remote plug-ins can be invoked as if they were local ones. By moving unnecessary plug-ins outside of local Eclipse installation, not only can our method improve the overall performance of the platform, but it can also diminish the waste of time on tedious installation and uninstallation of plug-ins which are seldom used. Other advantages of our method include the feasibility of invoking remote plug-ins which are either hard or unable to be installed in local Eclipse, as well as more complete control of vendors to client's access to their tools deployed as remote plug-ins.
5

金融業跨業合併探討

周士淳 Unknown Date (has links)
近年來在競爭日益激烈以及法令逐漸開放之下,金融業透過購併進行跨業經營已成為一個趨勢,也使得金融產業的結構大大的改變。金融業跨業經營的模式包括以美國及我國為例的金融控股公司模式,德國的綜合銀行模式、英國轉投資的方式,然而各種的經營模式下各有其優缺點,且各有其形成的背景及理由。   本研究以美國的商業銀行Chase Manhattan和投資銀行JP Morgan的跨業合併案,進行個案分析,以瞭解其背後合併的動機、組織調整方式、合併經營後的績效以及合併過程中所遭遇到人事、文化整合的問題。   此外,本研究利用國內銀行、證券、產險、壽險業過去十年的會計資料,分析各金融業的獲利情形、風險程度。並以模擬合併的方式探討國內金融業跨業合併是否存在風險分散的效果。   研究結果發現,以國內的金融業而言,只有在證券業和產險、壽險業結合時有較顯著的風險分散效果。另一方面,透過個案分析,瞭解到透過金控公司方式跨業經營,可以達到部分的cross-selling的效果,然而風險的控管也更加重要,且各子公司之間在進行跨公司的緊密配合。而文化、人事的整合部分也是影響合併成功與否的重要因子,因此對於任何想要進行跨業合併的金融機構,更要謹慎的處理這方面的問題。
6

以XML Web Service整合理財諮詢服務之研究

張嘉任 Unknown Date (has links)
網際網路的高速且高度成長,使得今日的網路應用及服務日趨豐富化,網路化理財的觀念,也因此而得以實現。但網路理財牽涉到諸多系統的整合問題,使得目前各金融機構在網路所提供的網路理財服務,在各方面資訊提供及應用上都顯得有限且重複性過高,網路理財的真正效益並沒有真正的達到最大化。網路上各個功能系統的相互獨立,要提供一完整性的解決方案在系統整合上已經是一大瓶頸,再者網路服務的使用者在使用服務時皆受限於網路應用系統本身的功能及資源,使用者無法真正的具備網路服務在選取及使用上的自主性。   在本研究中將試圖以XML Web Service的技術架構,建置一整合性的應用服務平台,讓平台能快速的和網路上任一網路應用提供者整合,並能整合網際網路上服務提供者所提供的服務,讓系統和系統間、使用者和系統間,都是以鬆散耦合結構來進行互動。使用者在使用網路服務時也能擺脫過去受限於網站應用提供資及應用上的限制,讓使用者在使用網路服務時能根據自己的需求進行個人化的服務選用,讓使用者得到的是即時性、個人化、整合性的資訊。
7

分散型無線通信ネットワークのための高効率アクセス制御技術 / Efficient Access Control Techniques for Distributed Wireless Communication Networks

井上, 保彦 23 March 2015 (has links)
Kyoto University (京都大学) / 0048 / 新制・課程博士 / 博士(情報学) / 甲第19128号 / 情博第574号 / 新制||情||101 / 32079 / 京都大学大学院情報学研究科通信情報システム専攻 / (主査)教授 守倉 正博, 教授 高橋 達郎, 教授 梅野 健 / 学位規則第4条第1項該当
8

新北市國民中學校長分散式領導與教師學術樂觀關係之研究 / The Study of the Relationships between Principal Distributed Leadership and Teacher Academic Optimism in Junior High School in New Taipei City

林松德 Unknown Date (has links)
本研究旨在先探討新北市國民中學校長分散式領導與教師學術樂觀的現況;接著,剖析不同背景變項與學校變項的教師知覺校長分散式領導與教師學術樂觀的差異情形;再來探討校長分散式領導與教師學術樂觀之間的關係;最後,以逐步多元廻歸檢視校長分散式領導對教師學術樂觀的預測力效果。為達到上述研究目的,本研究採用問卷調查法,以新北市42 所國民中學之主任、組長及教師為研究對象,共寄發問卷895 份,回收有效問卷743 份,有效回收率為83.0%。本研究採用SPSS 20.0 for Windows統計套裝軟體進行分析,獲得以下結論,根據研究結論,提出建議供有關單位參考: 一、新北市國民中學教師知覺校長分散式領導、教師學術樂觀為中高程度。 二、不同教育程度、服務年資、學校地區之教師在知覺校長分散式領導與教師學術樂觀上,沒有顯著差異。 三、51(含)歲組以上的教師知覺校長分散式領導高於30 ~ 40 歲組的教師;在知覺教師學術樂觀則高於所有其他年齡組的教師。 四、學校規模95(含)班以上的教師在知覺教師學術樂觀上,高於44(含)班以下的教師。 五、教師兼主任知覺校長分散式領導高於教師兼組長及教師二組;在知覺教師學術樂觀上,也高於教師兼組長及教師二組。 六、校長分散式領導與教師學術樂觀之間呈現高度正向相關。 七、校長分散式領導對於教師學術樂觀有預測力。 最後,依據上述研究結論,提出具體建議,以做為教育行政機關、國民中學校行政及未來研究人員的參考運用。 / The Study of the Relationships between Principal Distributed Leadership and Teacher Academic Optimism in Junior High School in New Taipei City Abstract First, this study aimed to explore the current situation of New Taipei City junior high schools’ principal distributed leadership and teacher academic optimism; then, to analyze the demographic variables on the different perception of principal distributed leadership and teacher academic optimism, and then to discuss the relationship between principal distributed leadership and teacher academic optimism. Finally, stepwise multiple regression was used to predict teacher academic optimism. Based on the research conclusions, I also proposed recommendations for the relevant institutions’ reference. To achieve these purposes, this study used questionnaire survey method. I used the directors, team leaders and teachers from 42 junior high schools in New Taipei City as my study subjects. A total of 895 questionnaires were distributed, with 743 valid questionnaires. The return rate was 83.0%. Survey data were analyzed by descriptive statistics, t-test, one way ANOVA, Pearson product-moment correlation coefficient, and stepwise multiple regression. The conclusions of this research are as follows: 1. In junior high schools in New Taipei City, teachers’ perception of principal distributed leadership and teacher academic optimism is high. 2. There’s no significant difference in education levels, service years, and school locations in teachers’ perception of distributed leadership and teacher academic optimism. 3. The teachers’ perception over 51 (inclusive) years old on principal distributed leadership is higher than the teachers from 31 to 40. On teacher academic optimism, it’s also higher than all the other groups. 4. The teachers’ perception over 95 (inclusive) classes on teacher academic optimism is higher than the teachers under 44(inclusive) classes. 5. Teachers hold the post as directors whose perceptions both on principal distributed leadership and teacher academic optimism are higher than team leaders and class teachers. 6. Principal distributed leadership is high positively correlated to teacher academic optimism. 7. The prediction of the relationships between principal distributed leadership and teacher academic optimism is supported. Finally, based on the above research conclusions, I provide recommendations as references and applications for educational administrations, junior high school administrations and future researchers.
9

臺北縣國民小學分散式領導對教師學術樂觀影響之研究 / Research on the influence of distributed leadership on teachers’ academic optimism in elementary schools in Taipei County

劉文章, Liu, Wen Chang Unknown Date (has links)
本研究旨在探討臺北縣國民小學分散式領導與教師學術樂觀的現況,剖析不同背景變項與學校變項知覺分散式領導與教師學術樂觀的差異情形,探討分散式領導對教師學術樂觀的關係,並根據研究結論,提出建議供有關單位參考。為達上述研究目的,本研究採用問卷調查法,以臺北縣60所國民小學之主任、組長及教師為研究對象,共寄發問卷632份,回收有效問卷553份,有效回收率為87.5%。本研究採用SPSS 17.0 for Windows和LISREL 8.80統計套裝軟體進行分析,獲得以下結論: 一、臺北縣國民小學教師知覺分散式領導、教師學術樂觀為中高程度 。 二、不同性別、教育程度、學校規模、學校地區之教師在知覺分散式領導與教師學術樂觀上,沒有顯著差異。 三、50(含)歲以上教師知覺分散式領導高於40歲以下教師,在知 覺教師學術樂觀也高於30(含)~40歲教師。 四、服務年資20(含)年以上教師在知覺分散式領導與教師學術樂觀上,高於10年以下教師。 五、教師兼主任知覺分散式領導高於班級導師;在知覺教師學術樂觀上,也高於教師兼組長及班級導師。 六、學校歷史30年以下與學校歷史90年以上的教師,在知覺分散式領導上,高於學校歷史30(含)~60年及學校歷史60(含)~90年教師;在知覺教師學術樂觀上,亦高於學校歷史30(含)~60年教師。 七、本研究建構之模式經過結構方程模式檢定獲得支持,分散式領導對教師學術樂觀具有正向顯著的影響。 最後依據上述研究結論,提出具體建議,以作為教育行政機關、國小學校行政參考運用。 關鍵詞:分散式領導、教師學術樂觀 / This study aimed to explore the current situation of Taipei County elementary schools’ distributed leadership and teacher academic optimism, and to analyze different background variables and school variables’ on the different perception of distributed leadership and teacher academic optimism, and to discuss the relationship between distributed leadership and teacher academic optimism. Based on the research conclusions, I also submitted recommendations for the relevant institutions’ reference. To achieve these purposes, this study used questionnaire survey method. I used the directors, team leaders and teachers from 60 elementary schools in Taipei County as our study objects. A total of 632 questionnaires were distributed, with 553 valid questionnaires. The effective rate was 87.5%. In this study, I used SPSS 17.0 for Windows and LISREL 8.80 statistical software for analysis and obtained the following conclusions: 1.Taipei County elementary school teachers’ perception of distributed leadership and teacher academic optimism is high. 2.There is no significant difference in different gender, education level, school size, school location in teachers’ perception of distributed leadership and teacher academic optimism. 3.Over 50 (inclusive) years old teachers’ perception on distributed leadership is higher than teachers under 40 years old. The teacher academic optimism is also higher than 30 (inclusive) to 40 years old teachers. 4.Teacher’s year of service above 20 (inclusive) years, their perception on distributed leadership and teacher academic optimism is higher than the teachers under 10 years. 5.Teachers also hold the post as directors’ perception on distributed leadership is higher than class teachers. Their perception of teachers academic optimism is also higher than teachers also hold the post as team leaders and class teachers. 6.Teachers at the school history of less than 30 years and school history over 90 years, their perception of distributed leadership is higher than teachers at school years between 30 (including) years to 60 years and school history of 60 (inclusive) years to 90 years. Their perception of teacher academic optimism is also higher than teachers at school history of 30 (inclusive) years to 60 years. 7.The model constructed in this study was supported through structural equation modeling test. Distributed leadership has a significant positive impact on teacher academic optimism. Finally, based on the above research conclusions, I submitted specific recommendations as references and applications for educational administration and elementary school administration. Keywords: distributed leadership, teacher academic optimism
10

二相系格子ボルツマン法を用いた流れ場中の微粒子分散化過程の研究

西山, 卓哉 23 January 2013 (has links)
Kyoto University (京都大学) / 0048 / 新制・課程博士 / 博士(工学) / 甲第17263号 / 工博第3665号 / 新制||工||1557(附属図書館) / 30020 / 京都大学大学院工学研究科航空宇宙工学専攻 / (主査)教授 稲室 隆二, 教授 斧 髙一, 教授 青木 一生 / 学位規則第4条第1項該当

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