Conceptualizing Audit Fatigue in the Context of Sustainable Supply Chains

: Organizations rely heavily on audits and compliance related activities to prove their competency, credibility, and ﬁrm performance. Sustainability audits encompass entire supply chains and are very complex due to, ﬁrstly, the global nature of supply chains and, secondly, the expansive scope of sustainability, which may include ﬁnancial, manufacturing, social, and environmental audits. Adding to this dilemma is the absence of a consensus on standards related to sustainability, resulting in di ﬀ erences, variations, and multiple interpretations. While the frequency, complexity, and scope of audits has increased, unfortunately so has the incident of audit fraud, which has seen increasing media coverage in recent times, often implicating major multinationals and their supply chains. We posit that this trend of increasing audit activity is causing “audit fatigue”, which, in turn, may inﬂuence the audit outcome, i.e., either audit fraud or a clean audit. This study proposes that audit fatigue is a genuine issue faced by organizations and needs to be conceptualized.


Introduction
Audits have become a regular feature in the day to day affairs of competitive organizations. Recent times have seen an increase in audit activity [1]. Whereas, in the past, audits were confined to one organization or sometimes just a single department within an organization. e.g., ISO 17025 lab certification, now entire supply chains are expected to be audited, including suppliers and distributors. Owing to the global nature of supply chains, this is not an easy task. This increase has been necessitated due to the changing nature of competition, which is no longer between individual businesses but rather between their supply chains [2]. In other words, it takes an entire supply chain's coordinated and combined effort to produce and deliver a product and not just one organization. Hence, organizations put a lot of emphasis on having a well-oiled network of suppliers and distributors and rely on audits to ensure their entire value chain (value chain is defined as the steps/processes that add value to a product, starting from the raw material to its finished form; all members in a supply chain may not be adding value to the product) is up to the mark [3]. Consequently, the scope of audit has grown beyond the confines of a single organization to cover entire supply chains. All suppliers are expected to conform to stringent standards. This exercise is costly, time consuming, and never ending. The constant fear of bad publicity, financial losses, job insecurity, and lawsuits has become an everyday reality. If news of non-compliant suppliers breaks out in public, the financial implications can be disastrous [4][5][6]. eradication of the ill effects, if any, of audit fatigue. Furthermore, effective management of audit fatigue will assist practitioners and stakeholders in ensuring the reliability of an audit outcome, which will help in achieving true sustainability.

The Fog of Sustainability
The concept of sustainability was proposed in the United Nations Bruntland Report in 1987 and can be broadly summarized as the ability to meet our own needs in a way that does not incapacitate future generations from meeting their needs [23]. Generally, this concept is composed of three pillars: economic, environmental, and social, also known informally as profits, planet, and people or the "triple bottom line" [24]. Sustainability is the latest buzzword [25], often promoted as the ethical choice for the discerning consumer, even though there are many diverging point of views and debates over what sustainability truly means [26]. Where one school of thought believes in according equal importance to these three dimensions, another prioritizes financial justifications, asking "how supply chains can benefit from addressing social and environmental practices" [27], thus making environment and society subservient to economic interests. Another opinion takes a totally opposing view, also called the ecological/environment dominant view, asking "how can a supply chain be truly sustainable?" [28][29][30]. This is a more idealistic approach in which the environment comes first, society comes second, and economic interests come last. These varying opinions speak volumes about the different approaches taken by practitioners and academics. Several studies confuse sustainability with corporate social responsibility (CSR), reducing environmental harm [31], or achieving several certifications [32]. This has resulted in the creation of many standards revolving around sustainability [33][34][35], each having their own interpretation of what sustainability entails.
The foggy concept of sustainability has been misused, much to the advantage of corporations, with some marketers taking full advantage of the widely acknowledged ambiguities implicit in the term [36]. These unscrupulous elements have hijacked the agenda for sustainability by using fraudulent marketing gimmicks to misguide the consumer and other stakeholders. Green labelling, green washing, and eco labeling are some of its manifestations [37,38]. While we wait for the answer to the question of what is to be measured, the question of how is also becoming a cause of confusion.
The lack of consensus on the definition has also resulted in a multitude of evaluation approaches such as Balance Scorecard [39,40], Life Cycle Assessment [41,42], Fuzzy set approaches [43,44], Data Envelopment analysis [45,46], and Analytical Hierarchy/Network Process [47,48]. These approaches lack objectivity because they can measure only those phenomena with features that can be quantified, controlled, and observed directly with the instruments at hand [49,50]. Organizations tend to cherry pick those approaches that prove their sustainability credentials. This confusion has resulted in a potpourri of standards, approaches, and interpretations being adopted by organizations and regulators. It can be safely stated that sustainability is a "wicked problem" [51][52][53] with no clear definition, no right or wrong solution but rather better or worse ones, each stakeholder having a widely different frame of reference for the problem, constraints and resources for the solution changing over time, and the problem remaining unresolved. Multiple audits become a necessary tool to bring some semblance of objectivity and sense to this complex situation. Interestingly, there is scant research on the effects of vague and numerous sustainability standards on audit outcome [54].

Complex Supply Chains
The modern consumer is very conscious when it comes to: (1) what products they consume, (2) how they were made, (3) where were they sourced, and (4) how the product will be disposed of [55]. Sustainability cannot be achieved without a sustainable supply chain [56], so the onus of achieving this goal falls on the entire supply chain. Consumer groups, NGOs, and regulators keep an increasingly sharp eye on industry practices and demand compliance. This has put organizations, along with their supply chains, under the spotlight [7,57]. A typical manufacturer, who interacts only with their first tier supplier and is hardly aware of their second tier suppliers [58,59], finds it difficult to ensure compliance throughout their supply chain. Adding to this is the fact that organizations with diverse product lines usually have multiple supply chains, each serving a different product category [60]. Supply chain complexity has seen its fair share of research [61][62][63][64], but scholars have not paid due attention on the impact it may have on audit outcome.

The Rise of the Audit Culture-Frequency, Variety and Outcomes
Stakeholders are increasingly relying on third party audits to ensure impartiality, transparency, and compliance [65,66]. The demand for audits has grown overtime to cover a variety of topics, including financial, accounting, stores and inventory, energy use, environmental impact, personal safety, worker rights, workforce diversity, organic chemicals, food, products, sustainable development, supply chains, etc. What Powers [1,67,68] calls the audit society and an audit explosion is actually a manifestation of supply chain complexity and the ever increasing pressure of society on producers to be sustainable. However, rising evidence suggests that this audit explosion has not lived up to expectations. Sustainability auditing has been criticized for enabling big corporations to "greenwash" their products [69], misuse information complexity [70], mislabel [71], under report [72], and sometimes even mislead the general public [73]. The use of audit as a means to control and pressurize suppliers during negotiations has also been reported [74]. The culture of concealment in corporations and their clout over regulators [75] allows them to get their way, regardless of the ethical and legal implications, sometimes to the detriment of human life. The ever increasing cases of misleading sustainability claims are now getting noticed [76]. This has given rise to a new term, "sustainability fraud" [54].
According to Zahra et al. [77], fraud is defined as "deliberate actions taken by management at any level to deceive, con, swindle or cheat investors or other key stakeholder". Fraud has been a widely studied subject in theory and practice [78,79], albeit with more focus on financial and accounting aspects. In spite of audits becoming acceptable and popular among governments and regulators, the audit regime continues to protect the interests of the industry; hence its neutrality, objectivity, and legitimacy is being challenged [16]. The recent high profile scandals, including the Volkswagen diesel emissions scandal [80][81][82], the Boeing 737 Max crash [83], now common automotive recalls [84], increasing reports of greenwashing [85], and misuse of the sustainability index [86], are a telltale sign that something is amiss. This leads us to the following proposition (as shown in in Figure 1):

Proposition 1a:
The increase in audit frequency leads to an increase in audit fraud. In order to have a balanced view, there is also a need to examine the positive aspects of frequent audits. Competitive organizations have converted the increasing demand for frequent and multiple audits into an opportunity to improve their processes [87,88]. This has enabled firms to focus on knowledge management and to become learning organizations. They have hired dedicated internal audit teams and have employed best practices [89]. In order to have a "clean audit", also called a high quality audit, which gives a true picture and is free from misstatements [90], organizations focus on organized, detailed, and formal documentation practices to ensure that the audit process is smooth, quick, and result oriented. This is a requirement of global brands (e.g., Nike, Adidas, Levi's, etc.) for their suppliers. Proper and thorough documentation is crucial for fulfilling the requirements of numerous audits and international standards and certifications. If the suppliers do not meet these requirements, they risk losing their clients. Due to the high financial stakes, such audits are taken seriously and act as a stepping stone towards improved firm performance [87,91,92]. In order to have reliable documentation throughout their networks, organizations invest in their supply chains' capacity building [93]. Studies also suggest that, under certain conditions, audits have a positive, albeit uneven, impact on the performance of supply chains [94][95][96]. This leads us to present the following proposition: Proposition 1b: The increase in audit frequency leads to clean audits.

Audit Fatigue: Tying All Elements Together
Merriam Webster defines fatigue as "a state or attitude of indifference or apathy brought on by overexposure to repetitive task" [97]. Potential causes are task repetition, monotony, eating habits, lifestyle, medication, prolonged stress, and lack of physical exercise and sleep [98]. It would be prudent to clarify that this research is discussing neither stress nor fatigue, which are often mentioned together, especially in the clinical domain (sports, physical, mental work, etc.). Neither are we discussing audit related stress, which has been researched mostly from the perspective of the auditors [99]. Audit fatigue differs from simple fatigue as it is a direct consequence of overexposure to multiple and frequent audit activity and not due to the typical causes mentioned above. Several industry reports and whitepapers have mentioned this term as the phenomenon induced by frequent audits from numerous clients [18,100]. Some scholars have made a fleeting reference to audit fatigue as an outcome of multiple audits [19,20,101,102] but have stopped short of exploring audit fatigue beyond the basic definition or studying its antecedents and effects. Almost all of these scholars were mainly focused on other aspects of audit activity, such as sustainability initiatives/associations and supplier audit standards, e.g., BSCI, SEDEX, FFC [9,10], sustainability assessment schemes [10,19], ethical audit regimes [16], information asymmetries in multi-tier supply chains [103], etc. Their main focus was on reducing audit fatigue through various approaches rather than on explaining what audit fatigue is in itself or the dynamics (environment/context, causes, and consequences) surrounding this concept. Audits of complex supply chains and sustainability practices, often involving numerous suppliers spread over several countries and covering wide social and environmental aspects, further add to audit fatigue. While the link between audit frequency and audit fatigue is implicitly suggested, the need for further empirical inquiry exists. From the above literature, the following proposition can be drawn:

Proposition 2:
The increase in audit frequency leads to audit fatigue.
This brings us to the question of whether audit fatigue has any impact on the audit outcome, which can go either towards audit fraud or a clean audit. As audits become more frequent, the pressure on top management and, subsequently, on the lower staff grows, and so does the likelihood of the auditee using questionable means to fulfil the audit requirements [104]. There is an implicit expectation for the auditee to provide necessary support to the auditor, which is usually not their primary job, and, as such, there is no associated incentive. In the absence of an explicit reward, these audits are not considered a welcome activity by them [105,106]. The indifference and apathy resulting from multiple audits can result in the auditee taking the audit activity lightly and cut corners during documentation, sometimes using fraudulent data and claims [107]. Various organizations in a supply chain may have differing procedures and documentation approaches [108]. This disharmony can result in additional effort on the part of the audit team to align, reformat, clean, and record the data spread amongst various partner firms [107], thus raising the chances of error and/or fraud. Various sustainability reporting standards, including Global Reporting initiative (GRI), and numerous sustainability indices are now facing criticism for being misused to camouflage problems under the guise of sustainability reporting [61,109,110]. This leads us to propose the following proposition: Proposition 3a: Audit fatigue may lead to audit fraud.
The alternate outcome to audit fatigue is a clean audit, which fulfills all objectives and is devoid of any misrepresentation. Research has shown that employing multiple third party audit firms and their regular rotation improves audit outcomes [92], thus supporting the argument that audit fatigue may not always be bad. Other factors, such as an organization's culture and leadership style, also play a very vital role in handling the various pressures [111,112] that may arise from audit fatigue. Similarly, individuals with more audit experience and effective learning environments result in better handling of audits [113]. These factors lead us to the following proposition: Proposition 3b: Audit fatigue may lead to a clean audit.
The model (Figure 1) being proposed here addresses how audit frequency may affect audit fatigue and, subsequently, audit outcome.
Nowadays, audits have gained a central position in determining the sustainability practices of supply chains. There is need to consider the link between frequent audits and audit fatigue and the subsequent impact on audit outcomes. We urge researchers to explore additional factors that may influence audit frequency; for instance, regulatory pressures, consumer awakening, and social dimensions. This can be further explored and investigated through empirical research using qualitative and quantitative approaches. Academics need to answer several questions, including but not limited to the following research questions. Whether these factors (complex supply chain, sustainability standards, and types of audits) are the only ones causing multiple audits? How to operationalize the construct for audit fatigue? Can a simple metric be used for audit fatigue to ascertain the vulnerability of a sustainability audit report? What are the antecedents of audit fatigue? What are the manifestations of audit fatigue apart from audit fraud? Is audit fatigue a universal phenomenon or just native to sustainability audits? Is audit fatigue affected by cultural difference between collectivist and individualistic societies? Does the employee's attitude play any role in handling audit fatigue? Researchers also need to study the effects of audit fatigue on other fields, including the financial sector, organic agribusiness, aquaculture, manufacturing, the development sector, the public sector, education, hospitals, and pharmaceuticals, which have seen an exponential rise in audit related activities.

Conclusions
The simplicity in the term audit fatigue has conveniently concealed its impact on audit outcome. Society's increasing dependency on audit for all sorts of decisions is based on the premise that audits are objective, transparent, independent, and generalizable. Increasing reports of audit fraud are challenging this trust. If audit fatigue has any impact on audit outcome, as proposed in this paper, this phenomenon gains significant importance for today's society. It is a long way before the perfect audit report in all senses is achieved. Until then, cases of misrepresentation and misleading sustainability claims by organizations will continue. Audit fatigue is a reality for the industry, and understanding relevant antecedents and consequences and finding countermeasures has the potential to contribute to reducing such incidents. This can contribute to improving trust in the audit report. This study has laid the foundation for further research by proposing a conceptual framework for audit fatigue, in which audit frequency plays the role of a predictor of audit outcomes.