Exploring Audit Opinions: A Deep Dive into Ratios and Fraud Variables in the Athens Exchange

Abstract

This study examines the feasibility of using financial ratios and non-financial variables to predict audit opinions (qualified or unqualified) for firms listed on the Athens Exchange (ATHEX) from 2018 to 2022. Using 450 firm-year observations from 90 non-financial firms, we applied a logit regression model to analyze the relationship between 11 financial ratios and non-financial factors, such as auditor quality, auditor turnover, and corporate performance. While the results indicate that auditor characteristics, particularly auditor quality, have significant explanatory power, the predictive strength of financial ratios varies, suggesting that audit opinions in Greece may be influenced by broader governance and institutional factors rather than financial indicators alone. The study provides empirical insights that contribute to the development of predictive models for audit opinion assessment. These findings are particularly relevant in emerging economies like Greece, where audit risk and firm failures are heightened due to economic and regulatory challenges. By identifying key determinants of audit opinions, the study enhances understanding of audit risk assessment and its alignment with International Standards on Auditing (ISA 520). However, its findings are limited by the sample size and Greece’s unique regulatory environment. Future research should explore the integration of additional governance and institutional variables and assess the model’s applicability in larger and more developed markets.

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