The interaction effects of firm and partner tenure on audit quality†

This paper investigates the impact of firm and partner tenure on audit quality, where audit quality is proxied by discretionary accruals. We study a sample of Spanish listed companies between 2005 and 2011 and address both the individual and the interaction effects of firm and partner tenure. Our study is motivated by the current debate, particularly intense at the EU level, on the impact of the auditor rotation regime on the quality of auditing. We find that, without considering the interaction effects, firm and partner tenure do not seem to play a relevant role as determinants of audit quality. Importantly, the interaction of firm and partner tenure shows stronger effects on audit quality than both forms of tenure separately considered. Finally, our analysis suggests that audit quality is maximized when medium firm and partner tenures interact. However, results for the interaction variables are sensitive to the accruals estimation method.     

On the Relationship between Audit Tenure and Fees Paid to the Audit Firm and Audit Quality

Abstract

We investigate the impact of audit firm tenure, partner tenure, audit fees, fees for non-audit services and total fees on audit quality, as measured by discretionary accruals. Our sample consists of Spanish non-financial public companies for the years between 2006 and 2013. Results indicate that audit quality increases with audit firm tenure but decreases with partner tenure. Moreover, the level of fees paid to the audit firm seems to have a negative impact on audit quality, which is mainly driven by fees for audit services. In this regard, we do not observe any significant relationship between fees for non-audit services and audit quality. Our results also show that the negative relationship between either long partner tenures or high fees and audit quality does not occur when the tenure with the audit firm is long. Therefore, long audit firm tenures do not only seem to involve higher audit quality ‘per se’, but also moderate the negative effects of partner tenure and audit fees on audit quality. The results of this study, which are robust to several sensitivity checks, may be relevant for the current debate on auditor rotation and the joint provision of audit and non-audit services.     

Audit firm tenure and financial restatements: An analysis of industry specialization and fee effects

This study investigates the relation between audit firm tenure and clients’ financial restatements. Specifically, we extend the audit tenure literature by assessing restatement-based reporting failures using dimensions of auditor expertise and independence previously assumed to underlie short and long audit tenure problems. Short tenure expertise and independence effects are hypothesized using audit firm industry specialization and audit fees as proxies. Long tenure independence effects are hypothesized using nonaudit fees as a proxy. Using matched-sample logistic regression and 382 companies with and without financial restatements during 2000–2004, the results support prior findings by indicating a negative relation between the length of the auditor–client relationship and the likelihood of restatement. For short tenure engagements, we find that auditor industry specialization and audit fees are negatively related to the likelihood of restatement. This result is consistent with concerns about reduced audit quality due to a lack of client-specific knowledge and low audit fees on new audit engagements. Alternatively, the long tenure results indicate an insignificant relation between nonaudit fees and the likelihood of restatement. This finding contradicts independence concerns about nonaudit fees paid to entrenched auditors.     

Audit Firm Tenure,Non‐Audit Services,and Internal Assessments of Audit Quality

We use data from internal assessments of audit quality in a Big 4 firm to investigate the impact of audit firm tenure and auditor‐provided non‐audit services (NAS) on audit quality. We find that first‐year audits receive lower assessments of audit quality and that quality improves shortly thereafter and then declines as tenure becomes very long. Partitioning our sample between SEC registrants and private clients, we find that the decline in audit quality in the long tenure range is attributable to audits of private clients. For audits of SEC registrants, the probability of a high quality audit reaches its maximum with very long tenure. We also find that audit fees are discounted for first‐year audits but auditor effort is higher than in subsequent years. We find no association, on average, between total NAS fees and audit quality in the full sample but observe that total NAS fees are positively associated with quality for SEC registrants and negatively associated with quality for privately held clients. Our findings are important for regulatory policies related to audit firm tenure and auditor‐provided NAS.     

高管会计师事务所关联、审计任期与审计质量

本文研究了高管会计师事务所关联对审计任期(事务所任期)和审计质量的影响,以及事务所关联存在和不存在的条件下审计任期与审计质量的关系。实证结果表明,有事务所关联的公司更可能收到标准审计意见,从而说明事务所关联降低了审计质量;同时,事务所关联关系延长了审计任期,即存在事务所关联的公司比没有事务所关联的公司与事务所合作的时间更长。在有事务所关联的公司和没有事务所关联的公司中,审计任期与审计质量之间的关系不同,进而说明有事务所关联公司的审计质量并不取决于审计任期,而是事务所关联本身的影响所造成的。     

Non-audit Services and Auditor Independence: New Zealand Evidence

Abstract:  This paper examines evidence in New Zealand about whether auditors providing more non-audit services are less independent. Three sets of tests are used to address the issue. The first examines whether there is a relation between non-audit fees and audit fees, the second examines whether there is a relation between non-audit fees and audit report qualification or modification, and the third examines whether there is a relation between non-audit fees and stability of audit tenure. The results suggest a potential for the impairment of auditor independence in appearance when auditors provide non-audit services but no evidence of any impact on independence of mind.     

Auditor rotation and the appearance of independence: Evidence from non-professional investors

We examine the impact of audit firm versus partner rotation on non-professional investors’ independence-related perceptions, extending prior research on auditor rotation and independence in fact. Arguments for mandatory audit firm rotation continue to be made by regulators and investor groups based, in part, on the idea that firm rotation will incrementally strengthen independence in appearance relative to audit partner rotation. We report the results of two experiments. The first examines 5-year audit firm versus partner rotation under relatively weak or strong audit committees. We find no statistically significant difference in beliefs about how much of an income reducing audit difference management will record, or in beliefs about auditor independence, between the two auditor rotation conditions. On the other hand, we find that non-professional investors do believe more of the audit difference will be recorded, and the auditors will be more independent, under a strong audit committee than a relatively weak audit committee. The second experiment provides further evidence on audit firm versus partner rotation by examining a setting involving a 26-year audit firm–client relationship. Again, no statistically significant differences between the two auditor rotation conditions were found. These findings suggest that compared to audit partner rotation, audit firm rotation does not strengthen independence in appearance among non-professional investors and that non-professional investors recognize the value of strong audit committees.     

The influence of jurors' perceptions of auditor tenure on blame

This study investigates whether jurors' judgments of auditor blameworthiness are influenced by the length of an auditor's tenure with a client. We use an experiment to determine whether tenure affects juror perceptions of an auditor's competence and independence. We then examine whether these perceptions influence the attribution of blame. Results, consistent with both sides of the mandatory auditor rotation debate, indicate that tenure has a positive impact on perceptions of competence and a negative impact on perceptions of independence. Further, as juror perceptions of the auditor's competence and independence decrease, attributions of blame increase. These results have implications for auditor tenure research as well as for auditors involved in litigation. By utilizing structural equation analysis, we find that the effects of auditor tenure on perceptions of audit quality are complex. Perceptions of both competence and independence are significantly related to extended tenure; however, these perceptions independently affect the assignment of blame. While longer tenure improves perceptions of competence and lessens blame, it decreases perceptions of independence resulting in greater blame. From a litigation perspective, the auditor's tenure with a client is a double-edged sword that must be addressed strategically in court.     

An Assessment of the Provisions of Regulation (EU) No 537/2014 on Non-audit Services and Audit Firm Tenure: Evidence from Spain

On May 27, 2014, Regulation (EU) No 537/2014 was published in the Official Journal of the European Union. Aiming to enhance audit quality, the new regulation establishes important limitations to the selling of non-audit services by the audit firm to audit clients and a maximum tenure of ten years with the audit firm. However, it should be noted that the extant research has not consistently supported that non-audit services or long tenures impair the quality of audits. This research studies whether these provisions have been empirically associated with reduced audit quality for Spain. Because of its low litigation risk, the potentially negative impact of both non-audit services and tenure on audit quality should be clearly observed in the Spanish audit market. Nevertheless, we do not find significantly lower levels of audit quality associated with either non-audit services or long audit tenures. However, these results are conditional on the validity of using abnormal accruals to measure audit quality.     

The effects of disclosing critical audit matters and auditor tenure on nonprofessional investors’ judgments

In an effort to provide more meaningful information to financial statement users, the Public Company Accounting Oversight Board (PCAOB) recently adopted sweeping changes to the audit report, requiring the audit firm to disclose whether or not it identified a critical audit matter (CAM) and its tenure with the client. To our knowledge, ours is the first study to explore how nonprofessional investors’ judgments are influenced by (1) the relative effects of a CAM disclosure versus a disclosure that the auditor did not identify a CAM, and (2) the disclosure of the audit firm’s tenure. We find that, relative to disclosing that no CAMs were identified, disclosing a CAM reduces investment intentions. We do not find a significant effect of tenure disclosure on investment intentions, despite evidence that participants attended to and understood the tenure manipulation. Concerning investors’ cognitive processes, we find that perceptions of both risk of material misstatement and management disclosure credibility mediate the effect of CAM disclosure on investment intentions, while perceived audit quality suppresses this effect. Our contributions include furthering the understanding of cognitive mechanisms through which CAM disclosure influences investment intentions, identifying a relatively unique setting in which perceptions of management disclosure credibility and audit quality move in opposite directions, and providing evidence that auditor tenure disclosure does not appear to affect investment intentions. Our findings should be of interest to regulators, auditors, issuers, and investors.     

Effects of audit partners on clients’ business risk disclosure

We empirically investigate audit engagement partners’ involvement in business risk disclosure. Specifically, we examine whether the quality of business risk disclosure is influenced by engagement partner tenure and knowledge. We also examine whether the effects of partner tenure and knowledge are similar for Big 4 audit firms and non-Big 4 firms. Since fiscal year 2003, listed companies in Japan have been required to disclose business risk information. Although the business risk information is not audited, auditors concerned about their audit quality may seek to influence clients’ business risk disclosure practices. Giving advice to management on the narrative business risk disclosure can contribute to improving the perceived value of the auditor’s services which can be a competitive advantage. Using a sample of Japanese listed companies from 2003 to 2010, we find that if the engagement partners’ tenure is shorter, a company discloses more business risk information and the disclosure is more detailed. Furthermore, companies with audit partners who have a larger number of client engagements disclose larger amounts of business risk information in more detail. However, the engagement partner effects are mitigated if they belong to a Big 4 firm.     

事务所审计任期会影响审计质量吗?——来自发布补充更正公告的上市公司的经验证据

本文以中国A股市场上针对2003年至2009年年报发布过补充更正公告的上市公司为研究样本,对事务所任期与审计质量之间的关系进行了重新讨论。与现有文献不同,我们在讨论中引入了审计风险的概念。我们发现,虽然从整体上看,事务所任期越长,审计质量越差。但是,进一步的分析发现,这一现象仅仅存在于涉及到的审计风险相对较低的上市公司中,而对于补充更正内容涉及到的审计风险相对较高的上市公司来说,事务所审计任期对审计质量并没有产生显著影响。我们的分析结果表明,事务所任期对审计质量的影响是有限的。在较高的审计风险水平下,事务所不会因为任期较长而丧失审计独立性。     

Does Ethical Culture in Audit Firms Support Auditor Objectivity?

The suggested cause of constrained auditor objectivity has been centred on auditors' financial incentives and long audit tenure. Recent research has challenged those assumptions and questioned the effectiveness of auditor rotation to counteract short-tenure threats to auditor objectivity. Audit firms and regulators need to adopt methods for enhancing auditor objectivity that are effective in various auditor–client relationships. This study examines whether audit firm ethical culture is positively related to auditor objectivity. Based on the responses of 281 practising auditors, the findings indicate that auditors are more likely to make objective judgments in ethical cultures characterized by the rewarding of ethical behaviour and punishment of unethical behaviour, prevalence of ethical norms, visible ethical leadership, and low emphasis on obedience to authority. In conclusion, evidence indicates that auditors in audit firms with a strong ethical culture are more likely to maintain auditor objectivity than are auditors in less supportive cultures. This suggests that audit firms should promote a strong ethical culture to reduce the risk of constrained auditor judgment.     

The effects of audit firm rotation on perceived auditor independence and audit quality

Our study explores loan officers’ perceptions of auditors’ independence and audit quality under three experimental audit firm rotation scenarios. We use a case experiment with a between-subjects design to determine whether rotation of the audit firm impacts financial statement users’ perceptions of auditor’s independence and quality. Findings based on 212 useable responses indicate that loan officers do perceive an increase in independence when the company follows an audit firm rotation policy. However, the length of auditor tenure within rotation fails to significantly change loan officers’ perceptions of independence. Findings also indicate that neither the presence of a rotation policy nor the length of the auditor tenure within rotation significantly influences the loan officers’ perceptions of audit quality.     

Some Economics of Audit Market Reform

The purpose of audit market reforms since 2001 is to restore public confidence in the institution of auditing based on two considerations: (1) ensuring audit quality; and (2) controlling the ‘adverse effect of competition’ in audit supply. Market reforms for audit quality are delivered through a package of prescribed actions motivated by an analytical relationship between audit quality and its possible determinants: (1) limiting audit tenure through a combination of mandatory firm rotation, partner rotation and re‐tendering; (2) limiting provision of non‐audit services (NAS) by the incumbent auditor; and (3) joint auditing and empowering the audit committee to enhance audit quality. This paper examines the competing independence hypothesis and expertise hypothesis that produce ambiguous theoretical relationships for audit quality–audit tenure and the independence‐provision of NAS. We then review whether the empirical literature resolves these conundrums. We also review the usefulness of joint auditing and empowering the audit committee to improve audit quality in the context of audit market reform.     

Audit Firm Tenure and Audit Quality in a Constrained Market

We examine the relation between audit quality and audit firm tenure in the Iranian audit market, which is constrained by government policies that create intense competition for clients among many small audit firms. We develop arguments that these circumstances create cost pressures that entrench low audit quality and render auditors' plans more predictable to managers wishing to misstate their accounts. Using publicly available data for the audits of listed companies in Iran prior to mandatory audit firm rotation and the incidence of misstated financial reports identified by the Iranian Association of Certified Public Accountants Inspection Office, we find that the likelihood of a misstatement is lowest in the first two years of audit firm tenure. We also find that the likelihood of misstatement is not associated with the year preceding a mandatory audit firm rotation, suggesting outgoing auditor effort is not sensitive to the prospect of subsequent revelations of deficiencies. Although our results from a pre-mandatory rotation period show that frequent rotations appear to improve the financial reporting quality in our sample, we are wary of interpreting these results as support for the mandatory audit firm rotation policy in Iran. Rather, we suggest this is a peculiar consequence of deficiencies in audit quality inherent in the Iranian market.     

How Do Various Forms of Auditor Rotation Affect Audit Quality? Evidence from China

The Enron/Arthur Andersen scandal has raised concerns internationally about auditor independence, audit quality, and the need for regulatory action such as mandatory auditor rotation. China's unique institutional features provide a setting in which we can compare comprehensively the various forms of auditor rotation at different levels (partner vs. firm) and in different settings (voluntary vs. mandatory). In addition, institutional conditions vary dramatically across China, which provides us with an opportunity to test whether the development of market and legal institutions affects the impact of rotation on audit quality. We expect that auditors are less (more) constrained by market forces and less (more) self-disciplined to maintain audit quality in regions with less (more) developed market and legal institutions. Therefore, mandatory rotation may play a more (less) important role in less (more) developed regions. Using auditors' propensity to issue a modified audit opinion (MAO) as a proxy for audit quality, we find that firms with mandatory audit partner rotations are associated with a significantly higher likelihood of an MAO than are no-rotation firms. However, this effect is restricted to firms located in less developed regions. We find similar evidence for voluntary audit firm rotation although the significance level is much weaker than for mandatory partner rotation. Other forms of auditor rotations (i.e., mandatory audit firm rotation and voluntary audit partner rotation), have no effect on MAOs.     

Independent audit committee members’ board tenure and audit fees

An independent audit committee is an audit committee on which all members are independent directors. This study examines whether independent audit committee members’ board tenure affects audit fees. On the basis of the prior literature, we formulate an unsigned hypothesis. This is because on the one hand, long board tenure audit committee members (defined as members with board tenure of 10 or more years) have greater incentives to protect their reputational capitals by purchasing increased audit effort, which positively affects audit fees. On the other hand, audit pricing reflects audit committee quality. Long board tenure audit committee members may have less need for increased audit effort because they can effectively oversee the financial reporting process themselves, which negatively affects audit fees. We find that audit fees are negatively associated with the proportion of long board tenure directors on the independent audit committee, consistent with the notion that audit committee members’ long board tenure results in lower audit effort.     

Costs and Returns on Graduates of the University of Bradford

Global repercussions of the Enron scandal and particularly the enactment of the Sarbanes–Oxley Act (SOX) in the USA, resulted in significant changes in the UK regulatory regime for audit and corporate governance, including an increased role for audit committees and independent inspection of audit firms. UK-listed company chief financial officers, audit committee chairs (ACCs) and audit partners were surveyed in 2007 to obtain views on the impact of 36 economic and regulatory factors on audit quality post-SOX. Four hundred and ninety-eight usable responses were received, representing a response rate of 36%. All groups rated various audit committee interactions with auditors among the factors most enhancing audit quality. However, International Standards on Auditing (ISAs) and the audit inspection regime, aspects of the ‘standards-surveillance-compliance’ regulatory system, are viewed as less effective. Exploratory factor analysis reduces the 36 factors to nine independent dimensions: economic risk; audit committee activities; risk of regulatory action; audit firm ethics; economic independence of auditor; audit partner rotation; risk of client loss; audit firm size and, lastly, ISAs and audit inspection. Post-SOX regulations have introduced additional dimensions to the factors influencing audit quality. Respondents commented that aspects of the changed regime are largely process and compliance driven, with high costs for limited benefits, a finding consistent with regulatory over-reaction.     

EC Green Paper Proposals and Audit Quality

In order to restore confidence in financial statements the European Commission proposes different measures to enhance audit quality. This paper examines potential effects of selected proposals on audit quality in the light of prior research findings. It concludes that an increased emphasis on substantive audit procedures may not be beneficial and that joint audits potentially improve competition and audit quality, but might increase audit fees. An appointment by a third party would strengthen auditor independence. The overall impact of a mandatory rotation of audit firms is unclear due to opposite effects on auditor competence and auditor independence. The provision of non-audit services might affect independence in appearance negatively. However, a total ban would not be necessary. Finally, a limit to the proportion of fees an audit firm can receive from a single client as well as a capping of non-audit fees seem to be desirable.