1,720,966 research outputs found
Earnings Persistence and Analysts Coverage
No full text本研究目的旨在探討企業盈餘持續性對於分析師報導行為之影響。盈餘持續性與資訊價值及私有蒐集資訊成本有關，因此應該是分析師注意的焦點。研究結果顯示盈餘持續性與分析師報導人數呈顯著正相關，但與長期預測和股票推薦相對報導人數及頻率呈顯著負相關。另外我們假定盈餘持續性較低的公司，分析師盈餘預測時較需要非公開資訊，因此分析師預測相對較樂觀，認為分析師相信發佈樂觀預測，他們可以從管理者獲得較多的資訊，我們的結果支持此一假設。我們也檢測盈餘持續性是否影響分析師群聚行為，結果指出盈餘持續性與分析師群聚行為呈顯著負相關。另外，我們依照分析師的盈餘預測(推薦)相對時點將分析師分類為預測(推薦)領先型與追隨型分析師，發現領先預測具有持續性，尤其在高持續性公司。領先推薦雖具有持續性，但企業盈餘持續性對此並不具有加乘效果。過去領先預測或過去預測相對較準確的分析師較可有意願藉由先預測以區別出其能力，特別是盈餘持續高的企業。盈餘持續性低的公司，預測較樂觀的分析師較可能成為領先型分析師。The purpose of this paper is to examine whether analysts’ coverage decisions would be affected by corporate earnings persistence. The persistence of the earnings series provides information concerning the value of private search activity and thus, should be a focus of analyst attention. Our results show that earnings persistence is significantly positively associated with the level of security analyst coverage while the number of analysts following long-term forecasts and the frequency of long-term forecasts are found to be negatively associated with earnings persistence. We posit that there is higher demand for non-public information for firms which have low earnings persistence than for firms which have high earnings persistence. Analysts make relatively optimistic forecasts when earnings are less persistence, suggesting that analysts believe that by issuing optimistic forecasts, they obtain better information from managers. Our results support this hypothesis. We also find that earnings persistence is significantly negatively associated with analysts herding index. n addition, we classify analysts as forecast (recommendation) leaders and followers based on the relative timeliness of their earnings forecasts (recommendation). We investigate whether security analysts exhibit persistence in their timely forecast or timely recommendation. We find that the analysts who have led peers in the past are more likely to lead again. Leading likelihood increases with the analyst’s prior accuracy and leader in the previous period, this relationship is more pronounced for firms with high earnings persistence.目 錄試委員會審定書 辭 I文摘要 II文摘要 III一章 緒論 1二章 文獻回顧與假說發展 7一節 盈餘持續度與分析師報導任務 7二節 盈餘持續性與分析師樂觀預測 8三節 盈餘持續性與分析師群聚行為 10四節 盈餘持續度與個別分析師之行為 11三章 變數定義與研究設計 14一節 變數定義 14二節 資料來源及樣本選擇 24三節 研究設計 26四章 實證分析結果 38一節 I/B/E/S收錄分析師預測之決定因素：資料庫及分析師選樣偏誤分析 38二節 盈餘持續性與分析師報導 39三節 盈餘持續度與分析師預測行為 44四節 企業盈餘持續度與領先預測/推薦持續性 48五節 盈餘持續性，分析師類型與從眾預測 57六節 盈餘持續性，分析師類型與預測準確性 61第五章 敏感性分析 66一節 分析師預測樂觀特性 66二節 盈餘持續性變動與分析師行為變化 68三節 非線性與極端值之檢測 71四節 變數轉換 72六章 結論 73考文獻 76 表 目 錄1 分析師的領先/追隨時間計算釋例說明 192 分析師多次預測時，領先/落後時間釋例說明 221 I/B/E/S資料庫收納預測偏好與分析師實際發佈預測的交互作用組合 262 IBES資料庫收錄分析師預測偏好分析(1997 - 2007 year) 383 樣本年度分配及分析師報導人數 404 盈餘持續度與分析師報導人數及次數 415 盈餘持續性與分析師報導人數之多元迴歸分析 436 盈餘持續性與分析師預測行為 457 利益衝突法規管制實施，盈餘持續性與分析師預測樂觀之關係 488 盈餘持續度高低分組，分析師領先預測(領先推薦)之相關係數 499 企業盈餘持續度與分析師領先預測(推薦)持續度之關係 5110 企業盈餘持續度與盈餘預測領先型/追隨型分析師交叉分析 5311 盈餘持續度與領先預測的多變量分析 5612 企業盈餘持續度，分析師類型與大膽預測的交叉分析 5813 領先型/追隨型分析師與大膽預測 5914 領先型/追隨型分析師預測準確性 6215 領先型與追隨型分析師重分類後之預測準確性比較 6416管制產業vs.其他產業；短期預測vs.長期成長預測樂觀預測特性 6717 盈餘持續度變動與分析師報導人數及次數變動 7018 等級迴歸結果 7
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
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