Resource-Based Theory (RBT): A Human Resource Perspective on Firm Performance

Resource-Based Theory (RBT) holds that firms achieve and sustain competitive advantage not primarily through their position in product markets but through the possession and deployment of internal resources that are valuable, rare, imperfectly imitable, and non-substitutable (VRIN). Although RBT originated in the strategic management literature, its most enduring and generative application has been to the firm's human resources. This article examines RBT as a theoretical foundation for understanding how human resource management (HRM) contributes to sustainable firm performance. It traces the theory's intellectual origins from Penrose's theory of the growth of the firm, through Wernerfelt's resource-based view, to Barney's VRIN framework, before turning to the strategic human resource management (SHRM) literature that appropriated and extended RBT notably Wright and McMahan's theoretical perspectives on SHRM, Lado and Wilson's competency-based view, and the human-capital and social-capital extensions that followed. Building on this foundation, the article develops an integrative conceptual model that links HR systems, VRIN human-resource capital, and collective employee behaviour to firm performance through the mediating logic captured in the Ability-Motivation-Opportunity (AMO) framework, and it advances five research propositions. The article also engages critically with the tautology, causal-ambiguity, and context-dependence critiques levelled at RBT, and considers complementary institutional and dynamic-capability perspectives that address RBT's static bias. It concludes with implications for strategic HRM practice and directions for future empirical research, arguing that human resources, properly configured, remain among the most defensible sources of sustained competitive advantage available to the modern firm.