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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

市場交易淺薄下之錯誤評價及其校正-以預測市場為實證基礎

吳偉劭 Unknown Date (has links)
預測市場的研究近年來在學界逐漸受到重視,因為它利用價格具有訊息加總的功能,每每創造出良好的預測績效,但一個預測市場的建立在諸多原因下,通常不易吸引大規模的參與者,例如為免觸犯法令規定,以虛擬貨幣代替真錢進行交易,在缺乏真實貨幣的獲利誘因下,很難有效吸引參與者,即便真能以真實貨幣交易,若實驗的議題並非一般大眾感興趣的話題也不易吸引多數人參與,在這種情況下無法避免要面臨市場交易過於淺薄的問題,雖然不少文獻標榜淺薄市場不會影響預測市場的預測精準度,但並不表這是一個可以置之不理的問題。 本文以預測市場預測2006年北高市長選舉為實證基礎,闡明淺薄市場對價格產生的影響,以及這些影響將導致對未來事件的錯誤評價與推論,要避免這種錯誤的評價與推論唯有設法消除淺薄市場引發的干擾,因此我們提出了五種可以消除這些干擾的方法並從中選擇一較佳者。如同一般文獻的讚揚,我們再次從預測市場獲得精確的預測效果,同時證明所謂淺薄市場不影響預測市場的預測精準度前提乃在消除淺薄市場對價格產生的干擾之後才能還原這個真相。
2

由評價誤差與成長機會比較可轉債與現金增資發行動機、宣告效果及資金運用 / The Issuance Motivation, Announcement Effect and Use of Funds of Convertible Bond and SEO: Evidence from the Perspective of Mispricing and Growth Opportunity

顧哲維, Ku, Che Wei Unknown Date (has links)
本研究探討台灣上市櫃公司發行可轉債及現金增資的決策議題。從發行公司的角度來看,利用錯誤評價及成長機會,同時輔以一些公司特徵變數以了解發行動機。後續並追蹤發行公司發行後資金運用情形,以了解發行公司發行動機及目的是否一致。另一方面,從投資人角度來看,觀察可轉債及現金增資公司宣告效果,並由後續資金配置驗證宣告效果之可靠性。 本研究採用Rhodes-Kropf, Robinson and Viswanathan(2005)提出的方法,將市值帳面比(M/B)拆解成錯誤評價與成長機會。以2001年至2011年台灣上市上櫃公司發行可轉債或現金增資為研究對象,發現無論是可轉債或現金增資,發行公司發行前錯誤評價及成長機會皆顯著較未發行公司高。接著,利用logit模型,發現可轉債發行公司之成長機會及代理問題為其主要發行動機,而現金增資公司則利用資訊不對稱擇時與調整資本結構為發行考量。本文進一步檢視發行後資金配置情況,發現成長機會越高之可轉債,後續資金用途顯著投資於資本支出與研發費用上,符合實質投資理論之觀點。另一方面,錯誤評價越高之現金增資,在前兩年有累積現金之現象,但不用於償還長期負債,且顯著運用於資本支出與研發費用上,僅部分符合行為理論之解釋。因此,本研究歸納現金增資公司發行動機除擇時外,亦有投資需求。最後,在宣告效果上,可轉債與現金增資均呈現負向宣告效果,且投資人給予現金增資較為負向的宣告效果,本文認為此乃投資人意識到公司利用資訊不對稱擇時,且後續資金配置不完全符合行為理論的預期造成的結果。 / This study examines the issuance of convertible bonds (CBs) and seasoned equity offerings (SEOs) for listed companies in TSE and OTC market in Taiwan. From the aspects of issuers, we use mispricing and growth opportunities along with other firm characteristics to understand the motivation of the issuance. We also track the use of post-issue proceeds and relate to the motivations of issuers. From the aspects of investors, we look at the announcement effects to examine appropriateness. We decompose market-to-book ratios into mispricing and growth option components through a methodology proposed by Rhodes-Kropf, Robinson and Viswanathan (2005). By using the samples of CB and SEO issuance between 2001 and 2011, we find that issuing firms of both types are overvalued and have greater growth opportunities relative to non-issuers. Next, we find that CB issuers show greater pre-issue growth opportunities and agency problems, while SEO issuers have greater pre-issue mispricing and tend to adjust capital structure implied by logit model. Furthermore, we examine the post-issue use of proceeds. For CB, firms with greater growth opportunities invest more in capital expenditures and R&D, consistent with real investment explanations. On the other hand, for SEO, firms with greater mispricing stockpile cash in the first two years but don’t pay down long-term debt. They also invest in capital expenditures and R&D. Thus, we conclude that the motivation of SEO firms might be timing and investment needs, partly consistent with behavioral explanations. Finally, the announcement effect of SEO is more negative than CB. Judging from the evidence above, it seems that investors know something.

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