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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

公開資訊對外匯市場效率性的影響

馬騁威 Unknown Date (has links)
在以往的文獻中,對市場在交易時段的波動性較高這種現象有各種不同的解釋。公開資訊一直是大部分的研究中無法忽視的一點,本文除了想從以往的方向觀察在24小時可以進行交易的外匯市場中,是否在不同時段的波動性有所不同、而哪些時段的市場波動性較高、這些波動性又是哪些因素所造成的之外、最重要的是本研究希望能對不同程度的公開資訊出現前、後市場的效率性的變化作更進一步的了解。 本文利用美國FED在1994年11月、12月及1995年2月三次召開公開市場操作委會(FOMC)會後所調整的貨幣政策來對外匯市場的波動性與效率性進行觀察。研究結果發現: 1.外匯市場的波動性在不同時段會有所不同,原因在於公開資訊的變化。意料之外的公開資訊會使得交易活動與報酬的變異數比率 激增,而報酬的變異數比率在資訊宣告後15分鐘之內會達到最高點,報價家數比率與報酬的變異數比率大約一個小時候會逐漸恢復正常水準。 2.預期中的公開資訊出現後市場的交易活動與波動性的變化不大,報價活動甚至有變得更冷清的現象。 3.公開資訊出現前,曲於市場上正處於等待狀態,因為不確定性造成的評價誤差相當嚴重,市場上也不斷的修正使得報酬呈現顯著的負序列相關;但是在意外的公開資訊出現後,在迅速反應資訊的內涵後,不確定性減少,市場的序列相關情形消失,效率性提高。預期中的公開資訊出現前後,市場的交易活動與波動的變化並不顯著,而且市場上的不確定性並未因此而消失,所以預期中的公開資訊出現後市場的效率性未能有效的改善,因此在24小時可以進行交易的外匯市場,沒有消息反而是一個壞消息(No News Is Bad News)。
2

董監事及經理人責任保險公開資訊不對稱問題分析 / The Asymmetric Information Problem of Directors' and Officers' Liability Insurance

陳怡均, Chen, Yi Jun Unknown Date (has links)
近年來,公司治理問題受到重視,加上我國成立投資人保護中心,因此投資人求償意識提高,主導經營決策的董監事及重要經理人被求償頻率與金額上也有增加之趨勢,故董監事及經理人(下稱D&O)責任保險投保需求日益增加。 然而,保險市場中一直存在資訊不對稱的問題,過去研究多以車險、醫療險、傷害險為主,責任險部份較少提及。D&O責任保險承保範圍特色主要為董監事及重要經理人個人執行職務之錯誤、不當行為,因此對於保險公司能否辨別風險、收取相對應之費率存疑。實務上,保險公司仍比本研究能觀察的資料更多,因此本研究僅能以公開資訊探討D&O責任保險市場。 本研究使用2010至2014年之間上市櫃公司投保D&O責任保險資料進行分析,收集可觀察之承保事故紀錄,並以公司特性之資產規模、資產報酬率、負債資產比率、財報是否為四大會計事務所簽核、是否為高波動性產業等變數,觀察事故發生與否與高保額之間的相關性,以公開資訊探討我國D&O責任保險市場。實證結果發現,事故發生與否與高保額保單有正相關,表示相關公開資訊與D&O責任保險市場存在資訊不對稱問題。
3

投資人關係與企業價值之探討 / Investor relations and enterprise value – a case study

高子琁, Kao, Tzu-Hsuan Unknown Date (has links)
Since the 2008 financial crisis, we have been seen significant changes and movements in the capital markets. As an Investor Relations Officer (IRO) of the listed company, a continuing challenges is to attract and retain the investment funds from the capital market and keep a liquidity. Hence, the effective Investor Relations is very essential for the listed company because an effective investor relations programme is not only save valuable management time, but also can assist to deliver a fair valuation for the equity of enterprise, reduced funding costs and provide a strong shareholder base which will stand the company in good stead if times get tough, such as in low season business cycles or uncontrollable global financial crisis. The Investor Relations would be the eyes and ears of a company in the capital market and would deliver valuable insights into market sentiment, such as to potential investors and shareholders. An effective investor relations must have full commitments and supports of the senior management and C-suite. Investor Relations is a strategic management responsibility that requires an integration of corporate finance, communications, competence, perspective, and compliance to enable the most effective two-way communication between a company, investment community, and all shareholders. The key objective of IR is to achieve optimal valuation of the enterprise. The Investor Relations should articulate in a way that investors could understand the direction of the company and develop reasonable expectations for determining success via investor conference, roadshow, and other communication channels.
4

公開資訊與私人資訊對預測市場準確度的貢獻分析:以「兩岸相關協議」為個案分析 / The Contributions of Public Information and Private Information to the Prediction Markets: The Case of "Cross-Straits-Related Agreements"

林子揚, LIN,TZU YANG Unknown Date (has links)
所謂「預測」,是建立在對特定事物認識的基礎上所做出的預估,而預測的準確與否關鍵即在於預測者對資訊的掌握程度。長久以來,由於未來一直是人類亟欲征服與掌握的目標,因此預測也成為一普遍存在的行徑。有別傳統預測方法的諸多限制,「預測市場」藉由網路參與者主動參與價格為訊息加總等特色,可以更全面的涵蓋不同來源的資訊並進一步轉換為一個量化的指標,以達到更準確的預測。本研究藉由「未來事件交易所」中兩岸相關協議的個案分析,發現市場在預測的過程當中,價格除了藉由公開資訊的反映出來以外,其中亦包含了大量私人資訊的反映,兩者反映所有資訊次數的比例大致維持著4:6的關係,而這結果也代表了在兩岸議題當中資訊並未大幅被揭露,欲準確預測事件的結果仍須多方仰賴私人資訊的貢獻。此外,根據個案分析的結果,本研究也發現兩岸協議確實適用於兩岸議題的應用。 / Prediction is an anticipation based on specific events. The key point of correct prediction depends on the level controlled by predictors. For a long time, future has been a target for human to control and overcome. Thus, prediction becomes a way to explore future events. “Prediction markets” is different from traditional way. It gets rid of many restrictions. It transfers all diverse information from participators into a quantification index to predict more correctly. This research analyzed by Cross-Strait Agreements on Xfuture.com finds that market price is reflected by not only public information but also private information. The ratio of public information to private information is 4 to 6. The result indicates that information is not disclosed completely in Cross-Strait Agreements. By solving this problem, we should use private information to predict more precisely. Furthermore, Cross-Strait Agreements certainly applies to Cross-Strait Affairs according to this paper.

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