  In the era of a growing population, systemic changes to the world, and the
rising risk of crises, humanity has been facing an unprecedented challenge of
resource scarcity. Confronting and addressing the issues concerning the scarce
resource's conservation, competition, and stimulation by grappling its
characteristics and adopting viable policy instruments calls the
decision-maker's attention with a paramount priority. In this paper, we develop
the first general decentralized cross-sector supply chain network model that
captures the unique features of scarce resources under a unifying fiscal policy
scheme. We formulate the problem as a network equilibrium model with
finite-dimensional variational inequality theories. We then characterize the
network equilibrium with a set of classic theoretical properties, as well as
with a set of properties that are novel to the network games application
literature, namely, the lowest eigenvalue of the game Jacobian. Lastly, we
provide a series of illustrative examples, including a medical glove supply
network, to showcase how our model can be used to investigate the efficacy of
the imposed policies in relieving supply chain distress and stimulating
welfare. Our managerial insights inform and expand the political dialogues on
fiscal policy design, public resource legislation, social welfare
redistribution, and supply chain practice toward sustainability.
