Does Auditor Reputation Matter? The Case of KPMG Germany and ComROAD AG
研究德国毕马威卷入ComROAD丑闻后，其客户股价下跌3%，且审计质量需求高的公司跌幅更大，同时客户流失增加，支持审计声誉保障审计质量的论点。
ABSTRACT We study the stock and audit market effects associated with a widely publicized accounting scandal involving a public company (ComROAD AG) and a large, reputable audit firm (KPMG) in a country (Germany) that has long provided auditors with substantial protection from shareholder legal liability. We use this event to study whether an auditor's reputation helps to ensure audit quality, a rationale for which recent literature and events provide scant support. Given the absence of a strong insurance rationale for audit quality, Germany permits a relatively clean test of whether auditor reputation matters. We find that KPMG's clients sustain negative abnormal returns of 3% at events pertaining to ComROAD, and that these returns are more negative for companies that are likely to have higher demands for audit quality. We also find an increase in the number of clients that drop KPMG in the year of the ComROAD scandal (mostly smaller, recently public companies that are similar to ComROAD). Overall, our results provide support for the reputation rationale for audit quality.