管理科学
管理科學
관이과학
MANAGEMENT SCIENCES IN CHINA
2014年
5期
80-90
,共11页
代理成本%媒体报道%信息不对称%首次公开发行
代理成本%媒體報道%信息不對稱%首次公開髮行
대리성본%매체보도%신식불대칭%수차공개발행
agency costs%media coverage%information asymmetry%initial public offerings
媒体通过信息传播功能满足投资者的治理需求,在IPO前起到降低信息不对称的作用,但国有股份所释放的政策信号会与媒体的治理效应产生替代性。基于2009年至2012年中国A股上市公司的869家IPO样本数据,采用横截面数据的OLS多元回归和分组回归等实证研究方法,探索信息不对称环境下媒体参与公司治理的动因及治理效应问题,并验证国有股份的存在对其治理效应的替代性。研究结果表明,代理成本与媒体负面报道比例正相关,该结论与代理理论的逻辑相符,即公司IPO前媒体可以通过信息传播降低信息不对称,在信息不对称程度较高的公司媒体的治理效应更加明显。将政策信号纳入考虑范围后,相对于存在国有股份而言,无政策信号组媒体弥补信息不对称的治理效应更为突出,表明媒体的信息传播效应会被国有股份的政策信号所替代。
媒體通過信息傳播功能滿足投資者的治理需求,在IPO前起到降低信息不對稱的作用,但國有股份所釋放的政策信號會與媒體的治理效應產生替代性。基于2009年至2012年中國A股上市公司的869傢IPO樣本數據,採用橫截麵數據的OLS多元迴歸和分組迴歸等實證研究方法,探索信息不對稱環境下媒體參與公司治理的動因及治理效應問題,併驗證國有股份的存在對其治理效應的替代性。研究結果錶明,代理成本與媒體負麵報道比例正相關,該結論與代理理論的邏輯相符,即公司IPO前媒體可以通過信息傳播降低信息不對稱,在信息不對稱程度較高的公司媒體的治理效應更加明顯。將政策信號納入攷慮範圍後,相對于存在國有股份而言,無政策信號組媒體瀰補信息不對稱的治理效應更為突齣,錶明媒體的信息傳播效應會被國有股份的政策信號所替代。
매체통과신식전파공능만족투자자적치리수구,재IPO전기도강저신식불대칭적작용,단국유고빈소석방적정책신호회여매체적치리효응산생체대성。기우2009년지2012년중국A고상시공사적869가IPO양본수거,채용횡절면수거적OLS다원회귀화분조회귀등실증연구방법,탐색신식불대칭배경하매체삼여공사치리적동인급치리효응문제,병험증국유고빈적존재대기치리효응적체대성。연구결과표명,대리성본여매체부면보도비례정상관,해결론여대리이론적라집상부,즉공사IPO전매체가이통과신식전파강저신식불대칭,재신식불대칭정도교고적공사매체적치리효응경가명현。장정책신호납입고필범위후,상대우존재국유고빈이언,무정책신호조매체미보신식불대칭적치리효응경위돌출,표명매체적신식전파효응회피국유고빈적정책신호소체대。
Media coverage meets the investor′s governance need through information transmission , which reduces the information asymmetry between investors and managers .The policy signal of state-ownership companies would replace the governance effect of media coverage.Using the initial public offering data from 869 A-share listed companies during 2009-2012 in China, we a-dopt OLS multiple regression and grouped regression model to examine the motivation of the media involving in the corporate gov -ernance framework and the governance effect of media under the environment of information asymmetry .At the same time , we empirically test the substitution effect of the existence of state ownership on the governance effect of media coverage .The results show that Agency costs is positively related to the proportion of negative negative media coverage .Our conclusion conforms with the agency theory , which verifies that the media could induce information asymmetry through information transmission before IPO, and that the effect is more obvious in companies with higher information asymmetry .After grouping by the ownership , the paper finds that the media′s information governance effect is more salient in companies without state-ownership instead of compa-nies with state-ownership, which strengthens the hypothesis that the information transmission effect of media will be neutralized by policy signal of state-ownership.