The Rentier Metabolism: A foundational framework for the diversification penalty and the pathogenesis of industrial atrophy in resource-dependent economies

Nigeria's well-known 23% "diversification penalty" shows the thermodynamic cost of maintaining a rentier metabolic state, a maladaptive equilibrium in which resource richness systematically causes industrial atrophy. This study goes beyond traditional "resource curse" narratives by revealing self-reinforcing rentier mechanisms that actively undermine non-resource sectors through institutional deterioration, cognitive capture, and financial diversion. Longitudinal mixed-methods analysis of Nigeria and Ghana (1990-2025), integrating sectoral data and institutional diagnostics, estimates Rentier Metabolism as accounting for 71% of industrial diversification failure variation, outperforming previous models (48%), and imposing a 23% efficiency penalty. This article presents the first dynamic system model of rentier pathophysiology as well as therapeutic transition concepts to interrupt metabolic lock-in, as proven by Nigeria's textile collapse. Policy proposals have focused on institutional bypasses and metabolic reengineering to promote resilient diversification. Keywords: Rentier Metabolism, Diversification Penalty, Industrial Atrophy, Resource Curse, Metabolic Lock-in, Institutional Decay.