An Economic Analysis of Audit and Nonaudit Services: The Trade‐off between Competition Crossovers and Knowledge Spillovers*

In this paper, I present a model in which both markets for audit services and nonaudit services (NAS) are oligopolistic. Accounting firms providing both audit services and NAS will employ oligopolistic competition in each of these markets. In addition to auditors' gaining “knowledge spillovers” from auditing to consulting or vice versa, oligopolistic competition in one market will influence the counterpart in the other market ‐ what I call “competition crossovers”. Although scope economies due to knowledge spillovers (for example, cost savings) are always beneficial to auditors, such benefits can entice accounting firms to adopt strategies (for example, price reductions) to compete aggressively in the audit market so that some, or all, firms become worse off. A trade‐off arises between these two economic forces in the two oligopolistic markets. Given the trade‐off between competition crossovers and knowledge spillovers, accounting firms may not reduce their audit prices, even though supplying NAS enables firms to decrease auditing costs — a nontrivial impact of oligopolistic competition in two markets on audit pricing. The empirical implication of my results is that because of competition‐crossover effects between the auditing and consulting service markets, finding empirical evidence for knowledge‐spillover benefits is likely to be difficult. Control variables for “audit‐market concentration” concerned with competition‐crossover effects and “auditor expertise” concerned with knowledge‐spillover benefits should be included in audit‐fee regressions to increase the power of empirical tests. With regard to policy implications, my analyses help explain the impact of the Sarbanes‐Oxley Act on “market segmentation” and, hence, the profitability of accounting firms.     

An experimental investigation of bilateral oligopoly in emissions trading markets

Market power in emissions trading has been extensively investigated because emerging markets for tradable emissions permits, such as the European Union's Emissions Trading Scheme (ETS), can be dominated by relatively few large sellers or buyers. Previous studies on market power in emissions trading have assumed the existence of a subset of competitive players. However, a key feature of emissions trading markets is that emissions permits are often traded by a small number of large sellers and buyers. Using a laboratory experiment, our objective in this paper is to test the performance of an emissions trading market utilizing a double auction in a bilateral oligopoly. Our results suggest that the theoretical bilateral oligopoly models can better describe market outcomes of emissions trading. The effects of the slope of the marginal abatement cost function on market power in laboratory experiments are found to be consistent with those predicted by the theoretical bilateral oligopoly model. How market power is exercised depends on the curvature of the abatement cost function. If the marginal abatement cost function of buyers (sellers) is less steep than that of sellers (buyers), the price of permits is lower (higher) than that under perfect competition. This is because the market power of buyers (sellers) exceeds that of sellers (buyers). The price of permits is close to the perfect competitive price when all traders have the sameslope of the marginal abatement cost function.     

“Low-Balling” and Efficiency in a Two-Period Specialization Model of Auditing Competition*

This paper develops a simple, two-period specialization model to analyze the effect of start-up costs on auditing competition. Audit firms in the model make strategic specialization and pricing decisions. Through specialization, an audit firm achieves a comparative cost advantage over its competitors for all clients whose characteristics are closer to its area of specialization. This comparative cost advantage is further fortified by the presence of start-up costs. As a result, each audit firm obtains some market power and is able to price-discriminate across clients by offering “specialization-and-relationship-specific” audit fee schedules. This paper demonstrates that the practice of “low-balling” is a natural consequence of competition among audit firms. However, low-balling occurs only in a certain market segment where audit firms compete fiercely. This paper also shows that a policy of banning low-balling acts as a substitute for the commitment of the audit firms to partially collude their pricing policies and results in increased profits for audit firms and increased fees. However, it also results in audit firms choosing specializations in a more efficient way, thereby reducing total auditing costs.     

Auditor Fees and Fraud Firms

The issue of whether auditor fees affect auditor independence has been extensively debated by regulators, investors, investment professionals, auditors, and researchers. The revised Securities and Exchange Commission (SEC) requirements that resulted from the implementation of the Sarbanes‐Oxley Act (2002) limit nonaudit services (NAS) and mandate NAS fee disclosure. The SEC's requirements are based on the argument that auditor independence could be impaired—and hence audit quality may be reduced—when auditors become economically dependent on their clients or audit their own work. Economic bonding leads to reduced independence, which can lead to reduced audit quality. We study a sample of firms sanctioned by the SEC for fraudulent financial reporting in Accounting and Auditing Enforcement Releases (SEC‐sanctioned fraud firms) and examine whether there is a relationship between auditor fee variables and the likelihood of being sanctioned by the SEC for fraud. We use SEC sanction as a measure of audit quality that has not previously been used in the auditor fee literature and is more precise than some of the other proxies used for flawed financial/auditor reporting. We find, in univariate tests, that fraud firms paid significantly higher (total, audit, and NAS) fees. However, in multivariate tests, when controlling for other fraud determinants and endogeneity among the fraud, NAS, and audit fee variables, we find that while NAS fees and total fees are positively and significantly related to the likelihood of being sanctioned by the SEC for fraud, audit fees are not. These findings suggest that higher NAS fees may cause economic bonding, thereby leading to reduced audit quality. Our findings of significantly higher NAS fees and total fees in fraud firms hold after controlling for latent size effects and other rigorous testing. These results contribute to the literature that examines the SEC's concerns regarding NAS and can be used by policy makers for additional consideration.     

Independence in Appearance and in Fact: An Experimental Investigation*

In this study, we use experimental markets to assess the effect of the Security and Exchange Commission's (SEC's) new independence rule on investors' perceptions of independence, investors' payoff distributions, and market prices. The new rule requires client firms to disclose in their annual proxy statements the amount of nonaudit fees paid to their auditors. The new disclosure is intended to inform investors of auditors' incentives to compromise their independence. Our experimental design is a 2 3 between‐subjects design, where we control the presence (unbiased reports) or absence of auditor independence in fact (biased reports). While independence in fact was not immediately observable to investors, we controlled for independence in appearance by varying the public disclosure of the extent of nonaudit services provided by the auditor to the client. In one market setting, investors were not given any information about whether the auditor provided such nonaudit services; in a second setting, investors were explicitly informed that the auditor did not provide any non‐audit services; and in a third setting, investors were told that the auditor provided nonaudit services that could be perceived to have an adverse effect on independence in fact. We found that disclosures of nonaudit services reduced the accuracy of investors' beliefs of auditors' independence in fact when independence in appearance was inconsistent with independence in fact. This then caused prices of assets to deviate more from their economic predictions (lower market efficiency) in the inconsistent settings relative to the no‐disclosure and consistent settings. Thus, disclosures of fees for nonaudit services could reduce the efficiency of capital markets if such disclosures result in investors forming inaccurate beliefs of auditor independence in fact ‐ that is, auditors appear independent but they are not independent in fact, or vice versa. The latter is the maintained position of the American Institute of Certified Public Accountants (AICPA), which argued against the new rule. Further research is needed to assess the degree of correspondence between independence in fact and independence in appearance.     

Auditor Reputation,Auditor Independence,and the Stock‐Market Impact of Andersen's Indictment on Its Client Firms*

In this paper, we study a broad sample of Arthur Andersen clients and investigate whether the decline in Andersen's reputation, due to its criminal indictment on March 14, 2002, adversely affected the stock market's perception of its audit quality. Because these reputa‐tional concerns are more of an issue if an auditor's independence is impaired, we investigate the relationship between the abnormal market returns for Andersen clients around the time of the indictment announcement and several fee‐based measures of auditor independence. Our results suggest that when news about Andersen's indictment was released, the market reacted negatively to Andersen clients. More importantly, we find that the indictment period abnormal return is significantly more negative when the market perceived the auditor's independence to be threatened. We also examine the abnormal returns when firms announced the dismissal of Andersen as an auditor. Consistent with the audit quality explanation, we document that when firms quickly dismissed Andersen, the announcement returns are significantly higher when firms switched to a Big 4 auditor than when they either switched to non‐Big 4 auditors or did not announce the identity of the replacement auditor. Our empirical results support the notion that auditor reputation and independence have a material impact on perceived audit quality and the credibility of audited financial statements, and that the market prices this.     

Do Investors Care about the Auditor's Economic Dependence on the Client?*

In this study, we investigate whether investor perceptions of the financial reporting credibility of Big 5 audits are related to the auditor's economic dependence on the client as measured by nonaudit as well as total (audit and nonaudit) fees paid to the incumbent auditor. We use the client‐specific ex ante cost of equity capital as a proxy for investor perceptions of financial reporting credibility and examine auditor fees both as a proportion of the revenues of the audit firm and as a proportion of the revenues of the audit firm's practice office through which the audit was conducted. Our findings suggest that both nonaudit and total fees are perceived negatively by investors' that is, the higher the fees paid to the auditor, the greater the implied threat to auditor independence, and the lower the financial reporting credibility of a Big 5 audit. Furthermore, our findings appear to be largely unrelated to corporate governance: investors do not perceive the auditor as compensating for weak governance. Separately, recent anecdotal evidence suggests that declining revenues from nonaudit services' as a result of recent regulatory restrictions” are being offset by substantial increases in audit fees. Other things being equal, rising audit fees imply higher profit margins for audit services, indicating that the audit function may no longer be a loss leader. Thus, to the extent that investors perceive total fees negatively, recent regulatory initiatives to limit nonaudit fees may not have adequately addressed the perceived, if not the actual, threat to auditor independence posed by fees.     

Auditor Choice and Its Implications for Group‐Affiliated Firms

We examine which of two opposing financial reporting incentives that group‐affiliated firms experience shapes their accounting transparency evident in auditor choice. In one direction, complex group structure and intragroup transactions enable controlling shareholders to pursue diversionary activities that they later hide by distorting reported earnings. In the other direction, as outside investors price‐protect against potential expropriation, controlling shareholders may be eager to improve financial reporting quality in order to alleviate agency costs. To empirically clarify whether group affiliation affects company insiders' incentives to address minority shareholders' concerns over agency costs, we examine auditor selection of group firms relative to stand‐alone firms. In comparison to nongroup firms, our evidence implies that group firms are more likely to appoint Top 10 audit firms in China, especially when their controlling shareholders have stronger incentives to improve external monitoring of the financial reporting process. After isolating group firms, we find that the presence of a Top 10 auditor translates into higher earnings and disclosure quality, higher valuation implications for related‐party transactions, and cheaper equity financing, implying that these firms benefit from engaging a high‐quality auditor. In additional analysis consistent with our predictions, we find that group firms that are Top 10 clients pay higher audit fees and their controlling shareholders are more constrained against meeting earnings benchmarks through intragroup transactions and siphoning corporate resources at the expense of minority investors. Collectively, our evidence supports the narrative that insiders in firms belonging to business groups weigh the costs and benefits stemming from auditor choice.     

The Interrelation between Audit Quality and Managerial Reporting Choices and Its Effects on Financial Reporting Quality

Two distinct lines of research have been dedicated to empirically testing how financial reporting quality (measured as the earnings response coefficient or ERC) is associated with management's choice of reporting bias and with audit quality. However, researchers have yet to consider how ERCs are affected by either the auditor's reaction to changes in the manager's reporting bias or the manager's reaction to changes in audit quality. Our study provides theoretical guidance on these interrelations and how changes in the manager's or the auditor's incentives affect both reporting bias and audit quality. Specifically, when the manager's cost (benefit) of reporting bias increases (decreases), we find that expected bias decreases, inducing the auditor to react by reducing audit quality. Because we also find that the association between expected audit quality and ERCs is always positive, changes in managerial incentives for biased reporting lead to a positive association between ERCs and expected reporting bias. When the cost of auditing decreases or the cost of auditor liability increases, we find that expected audit quality increases, inducing the manager to react by decreasing reporting bias. In this case, changes in the costs of audit quality lead to a negative association between ERCs and expected reporting bias. Finally, we demonstrate the impact of our theoretical findings by focusing on the empirical observations documented in the extant literature on managerial ownership and accounting expertise on the audit committee. In light of our framework, we provide new interpretations of these empirical observations and new predictions for future research.     

A Reexamination of Behavior in Experimental Audit Markets: The Effects of Moral Reasoning and Economic Incentives on Auditor Reporting and Fees*

This study uses experimental markets to investigate how moral reasoning influences auditor reporting under different levels of economic incentives. In each multiperiod market, auditor subjects could either (1) misreport low observed outcomes as high and thereby reap economic advantages at the expense of third‐party investors, or (2) truthfully report low observed outcomes as low but thereby forgo the economic advantages of misreporting. We extend the Calegari, Schatzberg, and Sevcik 1998 experimental‐markets setting to incorporate moral reasoning, and test hypotheses based on the economic model of Magee and Tseng 1990 and the neo‐Kohlbergian moral reasoning framework of Rest, Narvaez, Bebeau, and Thoma 1999. We document a significant effect of moral reasoning on auditor behavior. Specifically, we find that misreporting and premium fees are more likely with higher than with lower moral reasoning subjects, and the moral reasoning effect diminishes as economic penalties increase in the market. These findings provide valuable insights for specifying the determinants of auditor misreporting, the observable behaviors that signal its existence, and the institutions that can prevent its occurrence in the market. We conclude that the relation between moral reasoning and behavior is more complex than commonly assumed in the accounting literature, and identify directions for future research.     

Crash Risk and the Auditor–Client Relationship

This study examines whether the term of the auditor–client relationship (i.e., auditor tenure) is associated with future stock price crash risk measured both ex ante and ex post. Using a large sample of U.S. public firms with Big 4 auditors, we find robust evidence that auditor tenure is negatively related to one‐year‐ahead stock price crash risk. The evidence is consistent with monitoring‐by‐learning where development of client‐specific knowledge over the term of the auditor–client relationship enhances auditors’ ability to detect and deter bad news hoarding activities by clients, thereby reducing future crash risk. This result holds even after controlling for endogeneity of the tenure/crash risk relation. We further provide evidence indicating that option market investors do not fully incorporate the information contained in the term of auditor–client relationship in predicting future stock price crash risk. Our empirical results have important policy implications for regulators concerned with ensuring auditor independence.     

The Consequences of Audit‐Related Earnings Revisions

In this study, we investigate the consequences that auditors and their clients face when earnings announced in an unaudited earnings release are subsequently revised, presumably as a result of year‐end audit procedures, so that earnings as reported in the 10‐K differ from earnings as previously announced. Specifically, we examine whether the likelihood of an auditor “losing the client” is greater following such revisions, and whether the likelihood of dismissal is influenced by revisions that more negatively impact earnings, that cause the client to miss important earnings benchmarks, by greater local auditor competition, or by auditor characteristics. We also examine audit pricing subsequent to audit‐related earnings revisions for evidence of pricing concessions to retain the client. Finally, we examine whether client executives experience a greater likelihood of turnover following an audit‐related earnings revision. Consistent with expectations, we find that auditor dismissals are more likely following audit‐related earnings revisions. We also find that dismissals are more likely when revisions cause clients to miss important benchmarks and when there is greater local auditor competition. Among nondismissing clients, we find that future audit fees are lower when the effect of the revision on earnings is more negative, consistent with auditors offering price concessions to retain clients when revisions are more displeasing. We also find a greater likelihood of future chief financial officer (CFO) turnover as the effect of the revision worsens. Our findings offer important insights into the consequences that auditors face when balancing their responsibility for high audit quality and client satisfaction, as well as into the consequences that CFOs face when releasing inflated but not fully audited earnings.     

Future Nonaudit Service Fees and Audit Quality

Prior to the Sarbanes–Oxley Act of 2002, audit partners experienced economic pressure to grow revenue from the sale of nonaudit services to their audit clients. To an auditor who is highly rewarded for revenue generation and growth, nonaudit services may represent a particularly strengthened economic bond with the client. Prior research shows that, in general, nonaudit service fees received in the current period do not impair audit quality. We examine a different setting. We propose that auditor independence can become impaired, and audit quality compromised, when clients that currently purchase relatively low amounts of nonaudit services, increase their purchases of nonaudit services from the auditor in the subsequent period. We test our prediction in the context of earnings management as a proxy for audit quality, measured by (a) performance‐adjusted discretionary accruals and (b) classification shifting of core expenses. Our results indicate that prior to the Sarbanes‐Oxley Act, rewards to the auditor in the form of future additional nonaudit service fees from current‐year high fee‐growth‐opportunity clients adversely affects audit quality. This effect is particularly strong among companies with powerful incentives to manage earnings. Our findings indicate that regulators should consider the multiperiod nature of the client–auditor relationship when contemplating policies that restrict nonaudit services, as well as the overall environment in which audit partners operate. This might include partner compensation arrangements that put pressure on audit partners to focus on increasing revenue at the expense of audit quality.     

Independence Threats,Litigation Risk,and the Auditor's Decision Process*

This study examines the effect of independence threats and litigation risk on auditors' evaluation of information and subsequent reporting choices. Using a Web‐based experiment, I tracked auditors' information gathering and evaluation leading to a going‐concern reporting decision. Specifically, 48 audit managers assessed client survival likelihood, gathered additional information, and suggested audit report choices. I found that auditors facing high independence threats (fear of losing the client) evaluated information as more indicative of a surviving client and were more likely to suggest an unmodified audit report, consistent with client preferences. In contrast, auditors facing high litigation risk evaluated information as more indicative of a failing client and were more likely to suggest a modified audit report. In addition, the association between risk and report choice was fully mediated by final information evaluation. This suggests that it is unlikely that different reporting choices resulted from a conscious choice bias, but rather that motivated reasoning during evidence evaluation plays a key role in the effect of risk in auditor decision making.     

Pricing of Initial Audit Engagements by Large and Small Audit Firms*

We investigate the extent to which auditors of U.S. companies reduce fees on initial audit engagements (“fee discounting”). We hypothesize that rivalries among sellers, in terms of client turnover and price competition, are more intense among small audit firms. The data support this hypothesis. New clients account for 34 percent of all clients for small audit firms, but only 9 percent of all clients for large audit firms. We theorize that differences in client turnover rates between large and small audit firms can be explained by the market structure of the audit industry, which consists of an oligopolistic segment dominated by a few large audit firms and an atomistic segment composed of many small audit firms. We further hypothesize and confirm that fee discounting is more extensive in the atomistic sector, and our results confirm this hypothesis. Our analysis of audit fee changes indicates that clients who switch auditors within the atomistic sector receive on average a discount of 24 percent over the prior auditor's fee. However, clients who switch auditors within the oligopolistic sector receive on average a discount of only 4 percent. Given that price competition is known to be less intense in oligopolistic markets than in atomistic markets, we believe that market structure theory can explain why fee discounting is lower when larger audit firms compete for clients.     

Can Audit Committee Expertise Increase External Auditors' Litigation Risk? The Moderating Effect of Audit Committee Independence

This study examines whether the perceived independence and financial expertise of audit committee members affect external auditors' exposure to legal liability. We use an experiment in which potential jurors make judgments about auditor independence and legal liability for a case involving an audit failure. We find that perceptions of audit committee independence from management are positively associated with judgments of auditor independence and negatively associated with auditor liability. However, financial expertise of audit committee members can be a double-edged sword. Our experiment finds that judgments of auditor liability are higher when the audit committee is perceived to have higher financial expertise but lower independence from management. In assessing litigation risk of current and prospective clients, auditors may want to carefully consider the independence of audit committee members from management, particularly when audit committee members have financial expertise. In the event of an audit failure, the financial expertise of nonindependent audit committee members can negatively affect jurors' perceptions of auditor independence and liability.     

Pricing to market, firm heterogeneity and the role of quality

We build a pricing-to-market (PTM) model with firm heterogeneity, which allows for imperfect competition and market segmentation in the presence of flexible exchange rates, horizontal and vertical differentiation and different tastes of consumers in destination markets. We derive firm’s pricing behaviour in response to price and quality competition shocks. We show that there is PTM heterogeneity across firms if quality has a role. We empirically assess the main predictions of our theoretical framework on Italian firm-level data. We document that export-domestic price margins are significantly affected by price and quality competitiveness factors even controlling for foreign demand conditions, size, export intensity, destination markets and unobservables. Finally, we provide evidence of strong heterogeneity across firms in their reaction to price and quality competitiveness.     

二手车定价时存在禀赋效应吗?

通过对行为经济学中"禀赋效应"研究进行归纳拓展,构建了二手车定价模型,将卖方禀赋效应分离出来,并基于二手车交易网站的微观数据,实证检验了二手车定价时的禀赋效应是否存在。得到如下结论:二手车市场中卖方定价时会受到禀赋效应的影响,从而制定一个高于参照点(使用时间、行驶里程和原始价格形成的中立参照价)的价格。通过稳健性检验,认为禀赋效应的存在是普遍且稳定的,但有可能受到驾驶体验、交易物品特征等因素的影响。研究构建的定价模型对行为经济学中禀赋效应和参照点的设定具有理论和实践的参考意义。     

基于双边市场理论的互联网定价模式与反垄断问题研究

文章首先厘清中国电信业的双边市场特征,然后通过构建双边市场模型分析了垄断平台和竞争性平台的均衡价格,同时考虑了不同收费形式下中国电信业的定价策略,最后分析了其双边市场中反垄断政策的含义.研究主要结论是:双边市场定价通常对需求价格弹性较小一边的价格加成比较高;网络外部性越强,价格结构越不对称;价格结构与用户数量或平台交易量是动态相互影响;差异化程度越大,平台对用户的价格加成越大.这对于我国“三网融合”的背景下电信产业市场结构、定价策略和反垄断问题具有一定的借鉴意义.     

Impact of Auditor Report Changes on Financial Reporting Quality and Audit Costs: Evidence from the United Kingdom

While substantial revisions to auditor reporting requirements are being implemented internationally, the impact of these reforms on financial reporting quality is unknown. We exploit the United Kingdom's recent auditor reporting changes and find that the United Kingdom's new reporting regime is associated with an improvement in financial reporting quality as proxied by significant decreases in absolute abnormal accruals and the propensity to just meet or beat analyst forecasts, and a significant increase in earnings response coefficients. As for audit costs, we do not find a significant change in audit fees or audit delay surrounding the implementation of the new reporting regime. Taken together, the results of this study suggest that new auditor reporting requirements are associated with a significant improvement in financial reporting quality without detecting a significant increase in audit costs.