【正文】
Doyle et al. 2007b).2。 Dechow et al. 1996). Weisbach (1998) also finds that a more effective board increases the likelihood of CEO turnover due to poor financial performance. Hence, I expect a more effective board to result in timelier remediation of material weaknesses. Two important aspects of SarbanesOxley Act are the quality of internal control over financial reporting and the effectiveness of corporate governance mechanisms. This study finds that firms with larger audit mittees, audit mittees with greater nonaccounting financial expertise, and more independent boards are more likely to remediate material weaknesses in a timely manner. The results have some implications. First, although the major exchanges require audit mittees to have at least three directors, the results of this study suggest that firms can enhance the monitoring of internal controls by expanding their audit mittees. With regard to the controversies over the definition of financial expertise under SarbanesOxley Act 407, this study shows that the nonaccounting financial expertise of the audit mittee members enhances the monitoring of material weaknesses remediation. Hence, nonaccounting financial expertise is a valuable ponent of the governance expertise of the audit mittee members. This finding lends support to the final provisions of SarbanesOxley Act, which expand the definition of financial expertise to include nonaccounting expertise. This study has certain limitations. First, prior studies show that firms with effective audit mittees are less likely to have internal controls problems (Krishnan 2005。 Doyle等人,2007年b)被發(fā)現(xiàn)的影響內(nèi)部控制質(zhì)量的各種控制變量后緩解了。這可能是與內(nèi)部控制質(zhì)量和治理特征的不可觀測(cè)的因素推動(dòng)的結(jié)果。當(dāng)這加強(qiáng)了發(fā)現(xiàn)重要變量的統(tǒng)計(jì)力量時(shí),它的工作原理為他人反對(duì)發(fā)現(xiàn)統(tǒng)計(jì)學(xué)上的顯著成效。此外,這些公司將如何影響本研究的結(jié)果目前尚不清楚。然而,以前的研究也限制設(shè)置測(cè)試審計(jì)委員會(huì)的影響,例如,審計(jì)師變更的的公司(克里希南2005年)和強(qiáng)調(diào)財(cái)政上的公司(Car cello和Neal2000)。缺乏足夠的審計(jì)委員會(huì)特征的變化也可以對(duì)這些特性的發(fā)現(xiàn)顯著成效。首先,現(xiàn)有的研究表明,有效的審計(jì)委員會(huì)的公司不太可能有內(nèi)部