以往有關中國大陸股權結構的研究,大多集中在與企業價值、經營績效以及公司治理間之關係,很少針對國家控股與會計品質之關聯性進行實證研究,因此本研究以上海證券交易所及深圳證券交易所上市之A股公司為樣本,探討2007年導入國際財務報告準則(International Financial Reporting Standards,IFRS)之後,是否會對整體會計品質有所影響。且由於IFRS係由規則基礎(rules-based)改成原則基礎(principle-based)來訂定,這對受政府力量影響極大的國有企業(State-Owned Enterprises,SOE)而言,在面對這兩股力量交互影響的同時,何者對會計品質有較為顯著的影響?均是本研究所欲探討的議題。研究結果發現:1.若裁決性應計項目為衡量會計品質的指標,則在導入IFRS後確實可降低A股上市公司利用裁決性應計項目來進行盈餘管理,且其力量遠勝於國有企業的效果。2.若價值攸關性為衡量指標,則導入IFRS亦可提升A股上市公司以及國有企業的價值攸關性。3.當以盈餘平穩化為衡量指標,則導入IFRS後確實可降低A股上市公司盈餘平穩化的情況發生,以顯示出公司真實的經營狀況;但是,就國有企業而言,卻無法有效降低政府操弄盈餘的機會。
The previous research about the ownership structure in China is focused on the relationships between the value of enterprises, the operation performance, and the corporate governance. However, it is seldom to investigate the association between the national holding and the accounting quality. In this research, we treat Shanghai and Shenzhen A-share as a sample, in order to investigate the influence of whole accounting quality after introducing the international financial reporting standards (hereinafter referred to as IFRS) in 2007. Moreover, the accounting standards are changed from rule-based to principle-based. Meanwhile, the state-owned enterprises affected by the government face the interchange powers, we want to find out the notable differences of the accounting quality. In this research, our findings: 1. If the discretionary accruals become the proxies of evaluating the accounting quality, the listed A-share companies could reduce discretionary accruals to manage earnings, and its power is stronger than that of state-owned enterprises. 2. If the value relevance becomes the evaluation variables, it could raise the value relevance of the listed A-share companies and the state-owned enterprises after introducing IFRS. 3. When the earnings smoothing becomes the evaluation proxies, the listed A-share companies could reduce the probabilities of earnings smoothing after introducing IFRS, and it reveals the true operating condition of companies. However, for state-owned enterprises, it could not effectively reduce the opportunities of manipulating earnings by the government.