同樣是受到停業懲戒的會計師，為何有些會計師能夠復業？本研究分別從需求與供給觀點探討上市櫃公司聘任復業會計師之原因。在需求觀點方面，由於聘任會計師是董事會的職權，董事會的成員應是影響聘任復業會計師的關鍵因素之一，所以本研究透過董監連結形成之社會網絡，探討企業對復業會計師之需求，發現企業之社會網絡與聘任復業會計師機率的關連如下。首先，當企業處於「弱社會網絡」時，企業聘任復業會計師的機率將隨著社會網絡的增強而降低，支持假說1-1。其次，當企業處於「強社會網絡」時，企業聘任復業會計師的機率將隨著社會網絡的增強而提高，但結果不顯著，不支持假說1-2。在供給觀點方面，復業會計師基於競爭之考量，將降低其審計公費，以提高其競爭優勢。本研究利用審計公費級距資料探討復業會計師與審計公費之關聯性，發現復業會計師所收取的公費顯著低於其他會計師公費的平均值，支持本研究復業會計師因聲譽受損而降低審計公費爭取查核客戶之假說。由本研究的實徵結論，可以得到下列經濟意涵：隨著企業依董監事形成之社會網絡強弱的不同，對於聘任復業會計師的決策也會不同，進而影響對復業會計師的需求，因此當企業處於「弱社會網絡」且聘任復業會計師時，投資人應特別注意其營運狀況或是聘任復業會計師的原因。此外，復業會計師在懲戒過後為爭取企業的聘任而降低其審計公費，但會計師事務所應防止復業會計師因審計公費較低而犧牲其審計品質，以避免再度損害事務所的聲譽。 Why do some of the resumed CPA come back to audit market? This study examines the reason by two perspectives. The first perspective is regarding the demand of audit market. Hiring CPA is the duty of the board of directors, so it is one of factors of hiring resumed CPA. Therefore, this study uses interlocking directorates to measure corporate social network. The result indicates that company will have low probability to hire resumed CPA with the weak social network. However, the company will have high probability to hire resumed CPA with the strong social network, but it is not significant. The second perspective is regarding the supply of audit market. This study uses the level of audit fee to investigate the relationship between resumed CPA and audit fee. The study indicates that the resumed CPA has lower level of audit fees.There are two economical implications of the study. First, the company has different probability to hire resumed CPA with different strength of social network. So when company hires resumed CPA with the weak social network, investors should pay attention to the reason. Second, the resumed CPA has lower audit fees in order to acquire clients, and the accounting firm should insure the level of audit quality of the resumed CPA at the same time.
