Search results

The International Auditing and Assurance Standards Board (IAASB) is currently in the process of revising International Standard on Assurance Engagements (ISAE) 3000. The purpose of this paper is to review the implications of this revision process for providing assurance on sustainability reports, and identify policy‐related research opportunities associated with this review.

The paper takes the form of a conceptual and critical review of standards development, and archival analysis of ISAE 3000 exposure draft responses.

In the revision of ISAE 3000, concerns have been expressed by a number of parties around the distinction between reasonable and limited assurance, the procedures necessary in properly undertaking a limited assurance engagement and the structure and content of a limited assurance report. These concerns can be addressed by appropriate research initiatives which can inform these policy issues.

Research opportunities are identified, in particular the use of experimental design to examine implications of changing the requirements of the procedures for limited assurance on assurance practitioners and of changing aspects of the assurance report on the level of assurance conveyed by limited assurance reports.

The paper contains a review of the standard‐setting process and has implications for assurance providers of sustainability reports, standard setters and regulators.

The paper provides an update of relevant standards for assurers of sustainability reports and review and appraisal of issues raised in the recent revision process of ISAE 3000.

This study aims to uncover fundamental challenges pertaining to sustainability reporting assurance practice (SRAP) in Indonesia. This study uses assuror and academician perspectives to examine the SRAP discourse in Indonesia.

The research method was qualitative approach by conducting online semi-structured interviews with ten informants, including four from assuror representatives and six from academician representatives. Qualitative data analysis, such as codification process and data triangulation, was used to understand the opinions of each informant and to develop a comprehensive discussion.

This study has identified the issues in the context of SRAP in Indonesia. Several recommendations have been made for the relevant stakeholders to improve the quality of SRAP in the Indonesian context.

The results of this study can be used by the stakeholders to improve the quality of SRAP in Indonesia.

The results of this study can be used by the stakeholders in Indonesia, for example, the authority of the financial services industry, to formulate policies related to SRAP in Indonesia.

There are still few previous studies that include an academician’s perspective related to the SRAP and examine SRAP in a developing country context.

Purpose: The aim of this study is to reveal the opinions of the auditors, academicians, and institutions that published integrated reports regarding the development and execution of the assurance process of integrated reports.

Design/methodology/approach: For this purpose, interviews were conducted using qualitative research technique to determine awareness about integrated reporting and combined assurance. Within the scope of the research, semi-structured interviews were conducted with six auditors, five academicians, and five workers in institutions that published integrated reports. Qualitative data analysis method was used to analyze the data.

Findings: As a result of the research, combined assurance process criteria were proposed in the integrated reports which in line with the opinions of the participants.

Originality/value: Institutions around the world are increasingly publishing integrated reports. However, when institutions publish integrated reports, there is no clear standard or any guidance on how to ensure the reliability of these reports. It is seen that AA1000, ISAE3000, GRI Standards, and some local standards are used to provide assurance. At this point, the combined assurance model can be used for the reliability of the information in the integrated reports. Integrated reporting and combined assurance are still relatively new concepts in Turkey. Furthermore, this study is important in terms of the lack of studies on how to provide combined assurance for integrated report when scanned related literature in Turkey. Although readily integrated reporting continued in Turkey, it continues to be an area of application is still under development. In particular, the research reflects the level of integrated reporting awareness and how to ensure assurance of these reports.

This paper aims to investigate the potential influence of managers on sustainability assurance. When the quality of sustainability reporting is questionable because of subsequent restatements, the authors explore whether assurance is used to enhance its credibility as a legitimization tool or as an impression management strategy. Additionally, the authors analyze how capital markets react to this potential managerial capture and, particularly, whether investors penalize this practice through the cost of capital.

Using an international sample from 2012 to 2016 and panel data regressions, this study relies on DICTION’s master variables of optimism and certainty to examine the impact of managers on assurance and the market’s reaction to these practices.

The study shows that some managers might use assurance as a legitimization tool rather than as a means of reinforcing the credibility of sustainability reporting. In such cases, the results reveal that investors penalize (reward) managerial influence (no influence) on assurance.

The new findings help companies understand that they will not improve their financing terms if investors perceive that managers have influenced assurance. Moreover, these findings emphasize the need for standardization to clarify assurance criteria and prevent managerial influence.

Managerial influence on assurance raises doubts about its value in terms of reducing information asymmetry and especially improving investors’ decision-making.

The present study represents the first evidence of the potential use of assurance for non-informative purposes. The authors provide clear evidence of how investors penalize managerial influence on assurance, in contrast to the mainstream literature, which shows that this practice always improves investors’ decision-making and is rewarded.

This study aims to review the literature on non-financial information (NFI) assurance including external assurance of sustainability reports (SRA) and integrated reports (IRA). The objectives are as follows: provide an overview of academic research; understand the nature of NFI assurance engagements by organising the literature around the five key elements of an assurance engagement; develop a framework for understanding NFI assurance; and provide directions for future research.

The study undertakes a structured literature review of 179 articles published from 1999 to 2023.

The review identified 324 researchers located in 35 different countries who published 179 articles on SRA and IRA. The researchers, their locations, journals, methods, theories and themes are examined. The literature is structured around the definition of an assurance engagement including a tripartite arrangement, subject matter, a suitable criterion, sufficient appropriate evidence and a written assurance report. A framework for understanding NFI assurance is offered. Avenues for future research, structured around the five elements of an assurance engagement, are presented.

Researchers will benefit from an overview of the literature and guidance on areas for future research. Lecturers can use the findings to develop content for their auditing courses. Reporting managers will benefit from a better understanding of this new form of assurance. Regulators can use this study’s insights to better inform the development of laws and corporate governance codes mandating NFI assurance. Standard setters can use these findings to guide the emergence of the new assurance standards. Assurance practitioners may use this research to inform practice.

The findings may prove useful in addressing capture, which deters NFI assurance from enhancing disclosure credibility and fulfilling its transparency and accountability role. This is to the detriment of the wider society.

The consolidation of the literature around the five key elements of an assurance engagement is unique. The framework devised offers useful insights into the dynamics of assurance generally and NFI assurance more specifically. The study is timely given the new European Union regulations on NFI reporting and assurance and the work of the International Audit and Assurance Standards Board in developing a specialist NFI assurance standard.

Although the association between sustainability assurance (SA) quality and firm value has been examined in previous studies, the moderating relationship is novel in this study and highlights the effect of corporate environmental sustainability performance (CESP) on the relationship between SA quality and firm value. This study aims to examine whether such an effect is strengthened or weakened by eco-efficiency, as measured by ISO 14001 certification, aggregate CESP score and each individual dimension of CESP (emission reduction [ER], resource reduction [RR] and product innovation [PI]).

The sample includes 40 companies in Euronext Paris with the largest market capitalisations (the Cotation Assistée en Continu 40 [CAC 40] index) from 2010 to 2020. The authors apply the feasible generalised least squares regression technique to estimate all the regression models. Because observed associations may be biased by reverse causation or self-selection, the authors use the instrumental variable approach and Heckman two-stage estimation.

The results show that SA quality had a positive and significant effect on firm value. Second, the authors demonstrate that CESP, as assessed by ISO 14001 certification, has a stronger interaction with assurance quality and acting as a moderator variable. Using the ASSET4 scores, an alternative proxy for CESP, the authors find inconsistent evidence regarding the impact of CESP attributes. The CESP and ER scores are homogeneous and have a positive effect on firm value. However, the PI and RR CESP attributes are not homogenous and do not have the same interactive effect on firm value. The results are robust to the use of an instrumental variable approach and the Heckman two-stage estimation procedure.

Policy implications: Regulators may be interested in the findings when considering current and future assurance requirements for sustainability reporting, and shareholders when considering SA as an investment choice criterion. The insights into and enhanced understanding of the incentives for obtaining high SA quality can help policymakers develop effective policies and initiatives for SA. Considering the possible improvements in sustainability performance when obtaining a high level of sustainability verification, governments need to consider mandating SA.

Firms receive clear confirmation of the importance of investing in SA quality. Financial markets do not evaluate SA dichotomously but reward companies with higher SA quality because of the greater credibility it provides. Firms should allocate a significant percentage of their annual budgets and other relevant resources to environmental training and development programmes to improve and maintain environmental performance. If they care about environmental issues, they must announce this by issuing sustainability reports and seeking assurance of the information disclosed. High-quality assurance not only has a significant effect on investors’ investment reliability judgements but also the perceived credibility of environmental performance fully moderates the effect of assurance on these judgements.

This study has social implications; the authors find that the French market rewards firms that provide a high-quality assurance to guarantee the integrity of their sustainability reports. Therefore, by incorporating environmental sustainability into their financial goals, a better assurance ultimately will urge firms to move from green washing to strategic goals, which is beneficial for society. Further, firms that focus on sustainability as part of their business strategy may attract employees who engage in green behaviours at work and create a friendlier and productive environment because it gives meaning to the work they do and keeps them engaged to the level needed to perform their jobs capably.

This study contributes to the literature by re-examining the relationship between SA quality and firm value. It also provides new evidence on the moderating effect of CESP on the SA quality–firm value nexus. Specifically, it explores the joint effect of credibility and eco-efficiency on market confidence in sustainability information.

This paper aims to investigate the relationship between the readability of sustainability reports and assurance provider effort, captured by assurance delay and the moderating effect of the assurance provider.

This sample consists of companies operating in sustainability sensitive industries from 39 countries for the period that covers the years 2016–2018.

The results show that poor sustainability reporting readability is associated with longer assurance delays. Indeed, assurance providers spend more effort assuring clients when sustainability reports are less readable, as shown by long assurance delay. In addition, increases in assurance delay associated with poor sustainability reporting readability are driven by accounting assurance providers. These results hold after controlling for endogeneity using Heckman's (1979) analysis and other measures of assurance delay readability used in prior literature. By checking the specialization of assurance provider partners and setting aside dominant countries, the authors provide insight into the impact of assurance provider specialization on the association between sustainability report readability and assurance provider effort measured by assurance delay and thus, lending further confidence to the strength of the study’s main findings.

This research provides preliminary evidence on the relationship between sustainability reporting readability and assurance delay as well as the influence of accounting assurance providers.

Sustainability assurance practice is viewed as a tool to add or enhance credibility. This study could be considered as another step into driving the standardization of sustainability reporting practice internationally.

This is the first investigation conducted in the sustainability literature on the assurance provider's response to the readability of sustainability reports.

This paper aims to verify whether the legitimate pressure of external forces on heavily polluting firms’ corporate social responsibility (CSR)-related behaviors affect firms’ assurance strategy in the Chinese context. The authors argue that, under external pressure, as a source of legitimacy, the assurance over CSR reports allows the business behaviors of heavy polluters to be recognized by society.

This paper sampled listed heavy polluters in China from 2011 to 2018 and used the multiperiod logit model to examine the effects of external corporate governance on firms’ assurance decisions. Principal component analysis methods were used to construct a comprehensive framework of external corporate governance. The indicators were obtained from the China Stock Market and Accounting Research databases, the NERI Report and the China Urban Statistical Yearbook.

This paper confirms that external corporate governance positively affects firms’ assurance decisions, and good financial conditions, well-governed internal controls and sufficient government subsidies positively moderate this effect.

The findings provide feasible ways to encourage firms’ high-quality corporate environmental information disclosure, thus providing valuable guidance for policymakers and other stakeholders to effectively supervise firms’ CSR behaviors.

The findings are of great importance in encouraging high-quality corporate environmental information disclosures, improving the support of capital markets among developing countries and drawing social attention to the environmental protection and social responsibility of heavy polluters.

The research extends the current research in the field of social environmental accounting by using legitimacy theory to explain firms’ assurance motivations. Additionally, this paper focuses on the practices of assurance services in the emerging economy and provides suggestions for developing assurance over CSR reports.

This paper aims to examine the influence of sustainability assurance report format (separate versus combined with financial information assurance) and level (limited versus reasonable) on nonprofessional investors’ judgments.

This study uses a 2 × 2 between-participants experiment with 436 US nonprofessional investors. The authors manipulate sustainability assurance report format and level to identify differences in judgments of information credibility, investment desirability and investment amount.

This study finds that sustainability assurance level influences participants’ judgments only when the financial and sustainability assurance reports are presented separately. Specifically, participants assess sustainability performance information as more credible and make higher investment judgments when presented with a separate limited, as opposed to reasonable, assurance sustainability report.

The International Auditing and Assurance Standards Board expressed concerns regarding whether assurance reports accompanying emerging forms of extended external reporting (EER) effectively communicate the level of assurance provided by the independent practitioner. The result that assurance level does not influence investor judgments in the combined reporting format appears contrary to the idea that integrated reporting should provide connectivity between financial and sustainability information. The finding that investors make higher investment and credibility judgments with limited assurance is inconsistent with the intent of sustainability assurance professional guidance and recent research results. Together, the findings suggest that investors may not be able to distinguish between differing levels of sustainability assurance when this information is presented in a combined report format.

Standard setters should consider how sustainability assurance report format and assurance level impact nonprofessional investor judgments.

Research on the effects of EER assurance report format is sparse. The results indicate that even slight changes in assurance report wording may cause investors to perceive that a limited assurance report conveys a higher assurance level than a reasonable assurance report.

This paper aims to investigate whether providing voluntary external assurance on voluntary environmental information by firms operating in environmentally sensitive industries (ESI) is relevant in terms of market value. It also examines how various characteristics of assurance statements (i.e. level of assurance, scope of assurance and provider of assurance) affect the value-relevance of environmental disclosure by ESI firms.

To mitigate the endogeneity problem, the authors use the two-step generalized method of moments estimation approach.

Focusing on annual and social reports of French companies listed in the SBF120 index, results show that environmental disclosure by ESI firms and its assurance are destructive in terms of market value. Moreover, while providing a broader scope of assurance and having a professional accountant as the assurance provider enhance the value relevance of environmental reporting of the whole sample, this is unlikely to be the case for ESI firms. In particular, a higher level of environmental disclosure is financially rewarded by market participants for ESI firms that provide a higher level of assurance.

The study provides a better understanding of the circumstances under which market participants assign value to voluntary environmental information disclosed by companies operating in ESI. It also provides insights into the value added to different characteristics inherent in the quality of assurance provided with regard to environmental disclosure.

The study indicates that the institutional context of the relationship between the firm and its shareholders influence the value obtained from assurance. Results provide value insights regarding cultural and legal dimensions of environmental reporting.

The study extends the prior literature on the capital market benefits of voluntary assurance practices by focusing on the French legal environment. France can be considered as a new institutional context that has been little addressed by the existing literature.