2026
Vol. 17, No. 3
Fraudulent conduct in entrepreneurial firms constitutes one of the most consequential yet underexplored dimensions of corporate governance and financial crime in Nigeria. This paper systematically applies the Fraud Hexagon model, a six-element theoretical framework comprising pressure, opportunity, rationalisation, capacity, arrogance, and collusion, to the detection of fraud in Nigerian entrepreneurial firms. Tracing the theoretical lineage from the Fraud Triangle through the Fraud Diamond and the Fraud Pentagon, the paper situates the Hexagon as the most comprehensive fraud explanation model currently available and examines its applicability to the governance-constrained environment of Nigerian entrepreneurial organisations.Drawing on current empirical literature, including evidence from 2024 to 2026, the paper analyses how each Hexagon element manifests distinctively within Nigerian entrepreneurial governance structures and cultural dynamics. The roles and limitations of the Financial Reporting Council of Nigeria (FRCN), the Economic and Financial Crimes Commission (EFCC), and co-regulatory bodies are critically assessed. Recent evidence is integrated to provide a current and contextually grounded analysis. Key challenges, including regulatory gaps, governance informality, forensic accounting capacity deficits, and cultural barriers to fraud reporting, are examined within a Hexagon-informed analytical framework. The paper concludes with a tiered policy framework and practical recommendations for regulators, entrepreneurs, investors, auditors, and policymakers.
EHIGIE A. HUMPHREY PhD, FCA