The Integration of Financial Auditing and Sustainability Assurance: Examining the Impact of Interdependence on Procedural Efficiency — An Empirical Study in the Libyan Context

Authors

  • Ayman Ibrahim Qwaider Department of Accounting, Faculty of Human Resources (Zaltan) / Sabratha University Author

DOI:

https://doi.org/10.65405/2tdtjs52

Keywords:

Financial auditing; Sustainability assurance; Mutual reliance; Procedural efficiency; Knowledge spillover; Libya

Abstract

This study examines the effect of integration between financial auditing and sustainability assurance on audit procedural efficiency, focusing on mutual reliance on evidence and procedures as an independent variable and procedural efficiency as a multidimensional dependent variable. Although prior research has largely examined the choice of sustainability assurance providers, empirical evidence on the actual integration between the two engagements and its efficiency consequences remains scarce, particularly in Arab and Libyan contexts.

The study employs a mixed factorial experimental design with a between-subjects factor (type of entity: banking vs. non-banking) and a within-subjects factor (level of mutual reliance: high vs. low).

A sample of 60 professional auditors will be randomly assigned, yielding 120 observations. Five hypotheses are tested concerning the direct effect of integration, the moderating role of mutual reliance, entity type, professional skepticism, and the mediating role of evidence quality.

Data will be analyzed using mixed ANOVA, moderated regression, and mediation analysis via PROCESS with bootstrapping.

The study is expected to show that integration improves procedural efficiency, especially under high mutual reliance, and that evidence quality partially mediates this relationship.

The findings are expected to contribute theoretically by extending knowledge spillover, economies of scope, and agency theory, and practically by informing regulators in Libya and the Arab region about the feasibility of allowing financial auditors to provide sustainability assurance.

Limitations related to sample size and experimental design are acknowledged.

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References

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Published

2026-10-18

How to Cite

The Integration of Financial Auditing and Sustainability Assurance: Examining the Impact of Interdependence on Procedural Efficiency — An Empirical Study in the Libyan Context. (2026). Al-Farooq Journal of Sciences, 2(4), 1071-1088. https://doi.org/10.65405/2tdtjs52