Influence of IFRS Adoption on the Earnings Performance of Publicly Listed Pharmaceutical Firms in Nigeria

This study examines the influence of International Financial Reporting Standards (IFRS) adoption on the earnings performance of publicly listed pharmaceutical firms in Nigeria. The study adopts an ex-post facto research design using panel data from five selected firms listed on the Nigerian Exchange Group (NGX) over the period 2020–2024. Earnings performance is proxied by Return on Assets (ROA), Return on Equity (ROE), and Earnings per Share (EPS). Data were analyzed using descriptive statistics, correlation analysis, and panel regression techniques. The findings reveal that IFRS adoption has a positive but statistically insignificant effect on earnings performance. Firm size shows a positive and significant relationship with performance, while leverage negatively affects profitability. The study concludes that IFRS adoption alone does not guarantee improved earnings performance without strong institutional enforcement. It recommends enhanced regulatory compliance and corporate governance mechanisms.