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  • 學位論文

資訊揭露評鑑結果變動與企業資金成本關聯性之實證研究

An Empirical Study of the Relationship between the Changes of Information Disclosure and Transparency Ranking and the Firms’ Cost of Capital

指導教授 : 邱士宗
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摘要


在安隆(Enron)案爆發以來,全球的投資人及主管機關紛紛注意相關公司治理問題,並提高對企業資訊透明度的重視。證券交易所及證券櫃檯買賣中心於2003年,委託證基會在考量我國國情及與國際接軌之原則下建置「資訊揭露評鑑系統」。此套系統係國內首次針對上市上櫃公司資訊揭露情形進行評比,證基會期望可以藉由此套系統促使企業提昇其資訊揭露的透明度。本研究以「資訊揭露評鑑系統」之評鑑等級作為企業資訊透明度的衡量指標,而過去有關資訊透明度與資金成本之研究多以單期為主,有鑒於過去研究發現債券評等之變動可產生新的資訊內涵,因此,本篇研究以資訊揭露評鑑結果跨期比較之變動值作為研究主軸,探討此套系統在國內資本市場中所扮演之角色,評鑑等級變好之企業是否有較低的資金成本。 實證結果顯示評鑑等級之變動值與企業債務資金成本呈現顯著負相關,評鑑等級變好之企業有較低的債務資金成本,表示債券市場的投資人在作決策時,可能會參考公司的資訊透明度,揭露程度提高可以減少債務資金成本。而有關權益資金成本部分,其與評鑑等級之變動值呈正相關但未顯著,與本研究原先預期不符,這表示評鑑等級變好之企業並不會有較低的權益資金成本,顯示國內股市投資人在選購股票時,可能較不會在意企業的資訊透明度,並不會將揭露程度較高之企業納入考量。由於加權平均資金成本受權益資金成本的影響較大,實證結果亦與預期不符,評鑑等級變好之企業並不會有較低的加權平均資金成本。

並列摘要


Since the Enron fraud occurred, the authorities and investors become more concerned about the issues of information transparency and if corporate governance mechanism can alleviate this problem. In 2003, the Securities and Futures Institute (“SFI”), entrusted by the Taiwan Stock Exchange Corporation (“TSEC”) and the Gre Tai Securities Market (“GTSM”), launched “Information Disclosure and Transparence Ranking System”(IDTRS). This was the first independent institute to rank the disclosure level of listed companies. The SFI hoped that this system can improve the companies’ information transparency. Prior studies indicate that a change in cost of capital can convey new information to the market. The major purpose of this study is to investigate the relationship between the changes of ranking and the cost of capital of the firms. The results show that there exists a significant negative relationship between the changes of ranking and the cost of debt capital. This finding leads us to conclude that lenders and underwriters may consider a firm’s disclosure quality in estimating firms’ default risk. However, the relationship between the changes of ranking and the cost of equity capital is not obvious, which indicates the firm’s disclosure quality might not be an important factor in investors’ decisions. Finally, the relationship between the changes of ranking and the cost of weighted average capital is also not significant.

參考文獻


王佩珍,2004,資訊揭露評鑑系統對股價影響之研究,中原大學會計學
何里仁,2002,公司治理之資訊透明度與績效評核關聯性之研究,逢甲
吳麒彬,2006,會計政策選擇與揭露程度對權益資金成本之影響,文化
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被引用紀錄


吳滿園(2015)。超額現金持有對資訊揭露評鑑系統評等的影響〔碩士論文,國立中正大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0033-2110201614015891

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