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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

價值股與成長股財務資訊宣告效果之研究

楊秋昱 Unknown Date (has links)
本研究以上市公司為樣本,探討價值股與成長股在面臨不同成長訊號時,其股價表現會否有顯著差異。本研究以過去文獻中最常用的分類指標「市價淨值比」做為分類價值股與成長股的依據,並依據營收成長及ROS(Ratio of Earnings to Sales)成長指標將樣本分為四大類:分別為高營收成長高ROS成長、低營收成長低ROS成長、高營收成長低ROS成長、低營收成長高ROS成長。 而本研究欲探討價值股與成長股在此四象限下之成長特性及宣告日前後之報酬表現,並探討價值股和成長股之報酬表現是否有顯著差異,本研究主要以宣告日前後一日及當日之三日平均異常報酬率為衡量基準。 實證結果顯示: 1、 在高營收高ROS象限下:價值股及成長股三日平均異常報酬皆顯著為正,而成長股的報酬率雖大於價值股,但大多情況下並不顯著。 2、 在低營收低ROS象限下:成長股與價值股的報酬大多是顯著負向的表現,尤其是價值股,在八種分類下,價值股都是顯著負向的反應,這可能是因為當價值型股票其公告的營收盈餘都是處於低成長或衰退的情形時,投資人會預期價值型股票淪為危機公司的可能性愈大,故投資人對於宣告低營收低ROS的價值股其看法是相當負向的。而成長股的報酬率雖大於價值股,但有一半的情況下並不顯著。故本研究亦無法推論兩者有顯著差異。 3、 在高營收低ROS象限下:價值股短期的報酬表現為負向,不過報酬率並未都顯著異於0;而成長股其報酬率有正有負,不過全都未顯著異於0。而在八種情況下價值股的報酬率都低於成長股,不過因只有三種情況下有顯著差異,故亦無法強烈推論在此象限下價值股與成長股因釋放的訊號不同而有顯著差異。 4、 低營收高ROS象限下:價值股的報酬表現在此象限下為顯著且正向的反應,且顯著大於成長股,而因價值股在此象限下宣告的成長率並未較成長股來的高,故本研究推論這可能顯示投資人對「價值股」宣告低營收高ROS指標時,投資人的解讀是:「控管成本良好,導致盈餘上升」,故只要價值股的盈餘成長上升,即便其營收為衰退,其股價會有正向反應,且顯著大於成長股。
2

併購動能對企業併購績效之影響:以美國市場為例 / Merger Momentum and Performance of Acquirer: The US Evidence

馮奕儒, Feng, Yi Ju Unknown Date (has links)
在全球併購浪潮興起之時,併購活動可能受市場競爭的影響,促使強強合 併,但也可能發生不理性的追隨行為。本文係研究在併購動能中宣告併購,對 主併公司的短期與長期併購績效之影響,並且進一步討論在併購案採現金交易、 主併公司為成長型公司、主併公司過去有成功併購經驗三個條件之下,對主併 公司於併購動能下宣告併購的短期與長期併購績效是否有顯著影響。 本研究之貢獻為,採過去併購績效是否顯著作為併購動能之衡量,而非單 純採用市場上所累積的併購績效之規模。另外,除了探討每個變數與併購績效 之直接關係外,亦特別著重於該變數與主併公司在併購動能中宣告併購之交乘 作用,剖析對主併公司短期及長期併購績效的影響。 而本研究發現,在併購動能當中,若主併公司為成長型公司,能夠顯著提 升其宣告併購之短期與長期績效。因此,對於併購動能下指併公司的績效表現 而言,該公司特性為關鍵因素,特別是對長期的併購績效來說。 / When merger waves occur, the M&A activities may be affected by competitive market. This may cause the win-win cooperation, but also may result in blind following. The primary purpose of this paper is to test the correlation of mergers in momentum and the short-term and long-term merger performance. Furthermore, this paper is also focus on three conditions which may influence the above-mentioned correlation, including cash payment, glamour bidders and bidders’ past successful experience of M&A. The major contribution of this paper is using the significance of past merger performance to measure the merger momentum, instead of simply using accumulated performance. Second, in addition to the direct relation between variables and merger performance, this paper also aims to emphasize the interaction of those variables, analyzing its influence to short-term and long-term performance. It is reported in this paper that, in the merger waves, glamour bidders significantly perofrm better in both short-term and long-term period. Thus, “Glamour” is a key characteristic for the bidders, which would lead to better performance in merger wave, especially long-term one.

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