主管機關於2006年1月增訂證券交易法第十四條第四項，規定發行人及證券商、證券交易所之會計主管應具備一定之資格條件，並於任職期間內持續專業進修。調查也指出，許多爆發財務危機的企業，都有突然更換簽證會計師或財會主管情況發生。又因爲，目前國內研究大多針對高階經理人異動對公司的影響，鮮少文獻針對會計主管異動與公司資訊內涵做探討，引起本研究動機，想進一步了解會計主管異動對股東財富的影響。
本文乃針對該研究領域進行分析，將會計主管異動區分爲自願及非自願性異動，探討家族及非家族企業下，自願性及非自願性會計主管異動原因所產生之資訊內涵。本研究以2006年1月1日至2007年1月31日間，台灣上市櫃公司會計主管異動爲樣本，探討會計主管異動與資訊內涵關係。
實證結果指出，家族企業會計主管自願性異動原因爲職務調動時，對股東財富有正面影響。而家族企業會計主管非自願性異動爲因證交法而離職者，對股東財富有負面影響。非家族企業非自願性異動爲離職者，則對股東財富有正面影響。
In January 2006, authority revises and supplements the fourth item of Article 14 of the Security Exchange Act. It requires issuers, security firms, and accounting officers of stock exchange should have a certain qualification requirement and be in continuing professional development during the work period. Reports also point out many companies replace their accounting managers or financial managers before their financial crisis breaks out. Most current research papers focus on the impact on the company caused by the replacements of the senior managers. Few research papers stress on the impact on information content from the company caused by the replacements of accounting managers. This motivates us to learn more about how the replacements of the accounting managers affect shareholders' wealth.
In this paper, we divide replacements of accounting managers into voluntary and involuntary replacements to discuss the impacts of these two replacements on information content in family business and nonfamily business. We take replacements of accounting managers from listed companies in Taiwan during January 1, 2006 to January 31, 2007 for the sample to explore the relation between replacements of accounting managers and information content. The result shows when the reason of the voluntary replacement of accounting managers in family business is job rotation, it has positive impact on shareholders' wealth. When the reason of the involuntary replacement of accounting managers in family business is leaving their job because of violation of Security Exchange Act, it has negative impact on shareholders' wealth. When the reason of the involuntary replacement of accounting managers in nonfamily business is leaving their job, it has positive impact on shareholders' wealth.
