English

Nonlinear Domar aggregation over transforming production networks

Theoretical Economics 2025-12-29 v4

Abstract

An economy-wide production network, manifested through monetary input-output coefficients, inherently destabilizes during the general equilibrium propagation of sectoral productivity shocks when substitution elasticities are non-neutral. This study explores the global properties of such networks by mapping the non-linear price manifold into a linearized \textit{transcendent space}. Within this framework, we identify the emergence of network \textit{singularities}, identifying the metabolic thresholds where productivity declines lead to supply-chain paralysis or efficiency gains render primary factors redundant. Furthermore, we demonstrate that the interaction between productivity shocks -- the sign of \textit{synergism} -- is uniquely determined by the substitution elasticity σ\sigma. Our findings transform industrial policy into an \textit{inverse problem} of network topology: we provide a rigorous justification for why an inelastic network necessitates selective concentration on bottleneck sectors, whereas an elastic network favors a diversified investment strategy.

Keywords

Cite

@article{arxiv.2404.18137,
  title  = {Nonlinear Domar aggregation over transforming production networks},
  author = {Satoshi Nakano and Kazuhiko Nishimura},
  journal= {arXiv preprint arXiv:2404.18137},
  year   = {2025}
}
R2 v1 2026-06-28T16:08:52.094Z