本研究以手方式蒐集2007年至2014年台灣上市櫃公司之內部控制缺失樣本,探討審計委員會之設置及其品質是否能降低內部控制之缺失(以下簡稱ICW)的發生率。實證結果顯示,自願性設置審計委員會的公司可以降低ICW問題的發生率。另外,審計委員會的品質係由六個不同的審計委員會特性綜合計算得出,而非以單一特性個別探討,實證結果顯示審計委員會品質愈高,愈能降低ICW發生率,意味著有效率的審計委員能抑制ICW的發生率。
Using a hand-collected sample of listed firms in Taiwan from 2007 to 2014, this study examines whether the establishment and adoption of an audit committee and its effectiveness could mitigate the incidence of internal control weaknesses (hereafter ICWs). The empirical resultsreveal that the incidence of ICW problems could be depressed by adopting the audit committee voluntarily. Rather than examining audit committee characteristics individually, an “audit committee quality” is established based on six different factors of the audit committee characteristics. This index is used as a proxy measure of the quality of the audit committee. The results reveal that effective audit committees result in greaterdepression of the likelihood of ICWsof Taiwanese firms.