Blockchain-enabled value generation induces cooperative tipping points in geriatric care networks

The global demographic shift threatens the fiscal sustainability of state-sponsored geriatric care. While community mutual aid offers an alternative aligned with Sustainable Development Goals (SDGs 3 and 11), traditional systems collapse due to free-rider exploitation and deflationary hoarding. This study proposes a permissioned consortium blockchain to transform informal volunteerism into a robust care economy. Utilizing a high-fidelity Agent-Based Model (ABM) tracking 1000 heterogeneous agents over 60 months, we computationally validate an algorithmic “Credit Production” mechanism. By treating the token issuance rate ( α ) as an independent variable, simulations identify a strict macroeconomic “Viability Corridor.” An optimal algorithmic subsidy of α = 1.15 successfully overcomes labor friction without triggering hyperinflation, inducing a critical-mass tipping point that achieves 90% network participation and a sustainable 68.3% satisfaction equilibrium. Furthermore, adversarial stress-testing confirms the architecture’s sybil-resistance, algorithmically depleting and isolating free-riders by Month 20. Economically, the mechanism safely decouples elderly well-being from initial fiat wealth, dynamically redistributing social capital to active labor providers. This validated blueprint offers policymakers a deployable, mechanism-designed infrastructure to resolve collective action failures and address the global caregiver shortage.