世界各國為推動或強化公司治理制度，均以設立或加強審計委員會功能為發展重點，由於近年來有關審計委員會之文獻，都以探討審計委員會之設置與盈餘品質間的關係為多，或是研究自願設置審計委員會之因素。因此本研究分別探討審計委員會與審計委員會專業性對公司價值之關係；同時加入資訊透明度做為中介變數，探討審計委員會是否會透過資訊透明度影響公司價值以及審計委員會專業性是否會透過資訊透明度影響公司價值。本研究使用路徑分析法分析審計委員會、審計委員會專業性、資訊透明度與公司價值之間的關係。實證結果顯示，審計委員會與公司價值具正向關係，表示設置審計委員會，投資人願意付出較高的價格購買其公司之股票，提升公司價值。審計委員會對公司價值同時也存在顯著間接效果，也就是說，審計委員會會透過資訊透明度間接強化公司價值。審計委員會專業性對公司價值的影響未達顯著水準，故資訊透明度在審計委員會專業性對公司價值的影響中，亦不具中介效果。 Establishing audit committee is an important developmental orientation of corporate governance in the world. In recent years, most of the studies related to the audit committee focus on the issues of the relationship between audit committee and earning quality, or study on the factors of establishing audit committee voluntarily. Therefore, this study examines the relationship between audit committee (audit committee expertise) and firm value and using information transparency as a mediator variable in order to examine whether audit committee (audit committee expertise) will affect firm value through information transparency.This study uses path analysis to analysis the relationship among audit committee, audit committee expertise, information transparency and firm value. The empirical results show that there is a positive relationship between audit committee and firm value. It means that if companies establish audit committees, investors are willing to pay higher price to buy their stocks and then improving firm value. Audit committee has direct and indirect effects on firm value at the same time. In other words, audit committee will strengthen the firm value through information transparency indirectly. Audit committee expertise has an insignificant effect on firm value. The results indicate information transparency have no mediating effect on the relationship between audit committee expertise and firm value.
