Abstract

This paper introduces the Socioeconomic Interaction–Psychological Resource (SIPR) Theory, a novel metatheoretical framework that conceptualizes social equality as a fundamental biopsychosocial nutrient essential for human vitality and resilience. While traditional models such as the Conservation of Resources (COR) Theory—often treat psychological resources as static individual assets, the SIPR conceptualizes them as dynamic capacities, continuously regenerated through the quality and equity of social interactions embedded within socioeconomic structures. Employing an integrative theoretical methodology, the study synthesizes perspectives from social justice philosophy, neuropsychology, and motivation theory to examine how structural inequalities are ontologically translated into deeply embedded psychological experiences. The SIPR Theory identifies four interdependent mechanisms of resource regeneration: (1) Equal Interaction, (2) Meaning-Making, (3) Solidarity, and (4) Motivational Renewal. The theory proposes that interactional equality functions as a neurobiological recalibration mechanism that fosters existential coherence. By reframing social equality from a normative political ideal into a biopsychosocial necessity, this study positions justice not merely as a moral virtue, but as a critical determinant of neurobiological and existential resilience.