1,720,967 research outputs found
Did investors learn from the stock market crisis?
No full text2008年5月，當許多投資人還在期待萬點行情即將再度到來時，台灣股市卻隨之遭受全球金融風暴的襲擊，由九千點一落跌落至四千點，許多投資人的積蓄瞬間少了一大半，而同樣的場景也曾在2000年四月上演。本篇論文要探究的是，遭遇過2000年股市泡沫化的投資人是否在此次的金融風暴下有不同的反應？投資人是否會經由之前的經驗學習進而改變自己的行為？本研究由國內知名券商取得投資人長達十年的交易資料，藉由錯置效果來檢視經歷過股市泡沫化的投資人在此次的金融海嘯中是否有不同的投資行為。本研究的假說與實證結果為以下三項：一、預期有經歷過2000年科技股泡沫的投資人會有學習效果，因此在2008年的錯置效果會較小，而我們做出的實證結果也確實支持這項假說。二、國外的實證結果顯示交易次數越頻繁的投資人，學習效果較好，錯置效果也較小，本研究檢視分群投資人每年的錯置效果後，發現台灣的投資人也有此現象，交易次數較頻繁的投資人不論在股市崩盤或是多頭時，錯置效果均較小且有顯著的差異。三、投資人的事後報酬是否會加強其投資行為的重複性，本研究衡量錯置效果顯著且事後又有正報酬的投資人，是否在2008年遇到股市再度崩盤時，傾向重覆上次的投資行為，堅持留在市場等到股市反轉呢？我們經由實證結果發現，投資人的確會因過去經驗得到了正報酬而重覆其行為。The Taiwan stock market crashed in May 2008, and caused lots of investors cry for the extreme lose of money. However, history repeats himself. The same scenario happened in April 2000.This paper asks: Did the investors who have the same experiences in 2000 tech bubble learn from the last crisis? Do they really act more reasonably than those who have no experiences?There are three main hypotheses and results from this paper. First, we expected those who have the experiences of the stock market crisis would learn from that, so the disposition effect of the experienced investors will be smaller than those who have no experiences. The empirical result supports this idea. Second, through many evidences from the literature, we supposed and got the results that those who traded more frequently have less disposition effects. Third, we found that those who had the positive return in 2000 are prone to have the strong disposition effect than those who had negative return.謝詞 ii文摘要 iiibstract iv錄 v目錄 vi一章 緒論 1二章 資料與研究方法 4一節、研究資料 4二節、研究方法 5三節、假說 7四節、樣本分群定義 8三章 實證結果 11一節、經歷過股市泡沫之投資人學習效果 11二節、投資人交易頻繁性與錯置效果的關係 15三節、過去報酬是否會加強投資人投資行為的重覆性 19四章 結論與後續研究 22一節、結論 22二節、後續研究 22考文獻 2
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
- …
