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Differences in Auditors' Materiality Assessments When Auditing Financial Statements and Sustainability Reports

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  • Robyn Moroney
  • Ken T. Trotman

Abstract

With increased interest in voluntary sustainability reports from investors and other stakeholders, more companies are having these reports assured. The issue of what is considered material in these assurance engagements is important, and yet research on materiality has focused only on financial statement audits. This article reports the results of an experiment where auditors assess the materiality of audit differences in the same magnitude for both a financial audit and a sustainability (water) assurance engagement. Two factors, the risk of breaching a contract and community impact, are manipulated between†subjects. We find that auditors assess the materiality of an audit difference significantly higher for a financial case than for a water case. This difference is significantly greater when there is no risk of breaching a contract than when there is a risk of breaching a contract. The risk of breaching a contract has a stronger effect on the difference in auditors' materiality assessments when there is no community impact than when there is a community impact. Overall our findings suggest that qualitative factors have a greater impact on sustainability (water) materiality assessments than on financial statement materiality assessments when an audit difference is between 5 percent and 10 percent of a relevant base. Understanding the factors that impact material judgments in sustainability reports is important as these factors affect the reliability of the reported disclosures.

Suggested Citation

  • Robyn Moroney & Ken T. Trotman, 2016. "Differences in Auditors' Materiality Assessments When Auditing Financial Statements and Sustainability Reports," Contemporary Accounting Research, John Wiley & Sons, vol. 33(2), pages 551-575, June.
    • Handle: RePEc:wly:coacre:v:33:y:2016:i:2:p:551-575
    DOI: 10.1111/1911-3846.12162
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    Cited by:

    1. Tsang, Albert & Frost, Tracie & Cao, Huijuan, 2023. "Environmental, Social, and Governance (ESG) disclosure: A literature review," The British Accounting Review, Elsevier, vol. 55(1).
    2. Habiba Al‐Shaer & Mahbub Zaman, 2018. "Credibility of sustainability reports: The contribution of audit committees," Business Strategy and the Environment, Wiley Blackwell, vol. 27(7), pages 973-986, November.
    3. Roberto Aprile & David Alexander & Federica Doni, 2023. "Enhancing the materiality principle in integrated reporting by adopting the General Systems Theory," Corporate Social Responsibility and Environmental Management, John Wiley & Sons, vol. 30(5), pages 2219-2233, September.
    4. Flasher, R. & Luchs, C.K. & Souza, J.L., 2018. "Sustainability assurance provider participation in standard setting," Research in Accounting Regulation, Elsevier, vol. 30(1), pages 20-25.
    5. Binh Bui & Muhammad Nurul Houqe & Mahbub Zaman, 2021. "Climate change mitigation: Carbon assurance and reporting integrity," Business Strategy and the Environment, Wiley Blackwell, vol. 30(8), pages 3839-3853, December.
    6. Veronica Grosu & Dorel Mateș & Monica-Laura Zlati & Svetlana Mihaila & Marian Socoliuc & Marius-Sorin Ciubotariu & Simona-Maria Tanasă, 2020. "Econometric Model for Readjusting Significance Threshold Levels through Quick Audit Tests Used on Sustainable Companies," Sustainability, MDPI, vol. 12(19), pages 1-32, October.
    7. Hien Hoang & Robyn Moroney & Soon‐Yeow Phang & Xinning Xiao, 2023. "Investor reactions to key audit matters: Financial and non‐financial contexts," Accounting and Finance, Accounting and Finance Association of Australia and New Zealand, vol. 63(3), pages 3325-3349, September.
    8. Patrick Velte & Martin Stawinoga, 2017. "Empirical research on corporate social responsibility assurance (CSRA): A literature review," Journal of Business Economics, Springer, vol. 87(8), pages 1017-1066, November.
    9. Jane Andrew & Max Baker, 2020. "Corporate Social Responsibility Reporting: The Last 40 Years and a Path to Sharing Future Insights," Abacus, Accounting Foundation, University of Sydney, vol. 56(1), pages 35-65, March.
    10. Hans B. Christensen & Luzi Hail & Christian Leuz, 2021. "Mandatory CSR and sustainability reporting: economic analysis and literature review," Review of Accounting Studies, Springer, vol. 26(3), pages 1176-1248, September.
    11. David Hay & Noel Harding & Pallab Biswas & Chris Gan & Irene Qingling Ge & Linh Ho & Dinithi Ranasinghe & Harj Singh & Nigar Sultana & Shan Zhou, 2024. "Comments on Exposure Draft for Proposed ISSA 5000, sustainability assurance engagements by the Auditing and Assurance Standards Committee of AFAANZ," Accounting and Finance, Accounting and Finance Association of Australia and New Zealand, vol. 64(1), pages 1221-1239, March.
    12. Camille Gaudy & Christophe Godowski & Jonathan Maurice, 2022. "CSR auditing at a crossroads. What the auditors' daily experience teaches us [L'audit RSE à la croisée des chemins. Ce que nous enseigne le vécu quotidien des auditeurs]," Post-Print hal-03842902, HAL.
    13. Chiara Mio & Marco Fasan & Antonio Costantini, 2020. "Materiality in integrated and sustainability reporting: A paradigm shift?," Business Strategy and the Environment, Wiley Blackwell, vol. 29(1), pages 306-320, January.
    14. Green, Wendy J. & Cheng, Mandy M., 2019. "Materiality judgments in an integrated reporting setting: The effect of strategic relevance and strategy map," Accounting, Organizations and Society, Elsevier, vol. 73(C), pages 1-14.
    15. Kerry A. Humphreys & Ken T. Trotman, 2022. "Judgment and decision making research on CSR reporting in the COVID‐19 pandemic environment," Accounting and Finance, Accounting and Finance Association of Australia and New Zealand, vol. 62(1), pages 739-765, March.
    16. Isabel‐María García‐Sánchez, 2020. "Drivers of the CSR report assurance quality: Credibility and consistency for stakeholder engagement," Corporate Social Responsibility and Environmental Management, John Wiley & Sons, vol. 27(6), pages 2530-2547, November.

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