Company takeovers and the auditor choice decision

Abstract

There is a growing literature on how companies select their auditors. This literature emphasizes both theoretical development and empirical testing. Anderson, Stokes, and Zimmer (1993) recently identified corporate takeovers as events that generate auditor selection decisions; the acquiring company (the acquirer) has to choose whether to retain the new subsidiary’s (the acquiree) incumbent auditor or switch to its own auditor. To date, this is the only reported study that examines auditor changes following corporate acquisitions. Anderson et al. (1993) speculated that if the business activities of the acquirer and the acquiree are different, then the acquiree’s incumbent auditor is more likely to be retained. They used takeover type (horizontal, vertical, conglomerate) as a proxy for differences in activities. Their empirical results, however, were contrary to these expectations.The purpose of this paper is to test the robustness of Anderson et al.’s findings in a different national setting (Britain instead of Australia). Further, it modifies Anderson et al.’s test procedures by introducing new variables that are also hypothesized to affect auditor choice in acquired companies. The results show that proxies for differences in activities between acquirers and acquirees, namely takeover type and industry, are associated with the retention of the acquiree’s incumbent auditor. The takeover type finding therefore differs from the findings of Anderson et al. (1993).Other factors associated with the decision to retain auditors include audit opinions, contested takeover bids, changes in top management, restructuring and integration of businesses, and relative audit fees. Some of these factors have also been identified in other, non-takeover contexts. Finally, audit switches to Big Eight firms are found to be more likely than switches away from the Big Eight.