Diversity, Equity, and Inclusion (DEI) and Organizational Performance in Corporate Non-Indigenous Firms in Port Harcourt, Rivers State

Abstract

This study examines the impact of Diversity, Equity, and Inclusion (DEI) practices on organizational performance in corporate non-indigenous firms in Port Harcourt, Rivers State, Nigeria. Despite growing global consensus on the strategic value of DEI, its institutionalization and measurable effect on performance outcomes in the Nigerian corporate landscape particularly in non-indigenous firms remain empirically underdeveloped. Anchored in the Resource-Based View (RBV) of the firm and Social Identity Theory, the study employed a cross-sectional survey design. Primary data were collected from 253 employees and managers drawn from three prominent non-indigenous corporate firms through a validated, structured questionnaire. Simple linear regression was deployed to test three research hypotheses. Findings indicate that workforce diversity management, inclusive leadership practices, and equity-oriented HR policies each exert a statistically significant positive effect on organizational performance (p < 0.05). Specifically, workforce diversity management accounted for 31.8% of the variance in organizational performance (R² = 0.318), inclusive leadership explained 35.6% (R² = 0.356), and equity-oriented HR policies explained 29.4% (R² = 0.294). These results underscore the imperative for corporate non-indigenous firms operating in multicultural environments like Port Harcourt to embed DEI as a core organizational strategy rather than a peripheral compliance exercise. The study advances scholarship on diversity management in the context of Nigeria's complex ethno-cultural business environment.