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VALERIO LACAGNINA

Threshold rule and scaling behavior in a multi-agent supply chain

  • Autori: Lacagnina, V.; Provenzano, D.
  • Anno di pubblicazione: 2010
  • Tipologia: Capitolo o Saggio (Capitolo o saggio)
  • Parole Chiave: Self organized criticality; agent-based model; bullwhip effect
  • OA Link: http://hdl.handle.net/10447/51877

Abstract

In this paper an agent-based model of self organized criticality is developed in a network economy characterized by lead time and a threshold behavior of firms. Instead of considering the aggregate production of the economy as a whole, we focus on both the propagation and amplification effects of a demand shock in the sectorial productions of a multi-agent supply chain. We study a static network structure representing a relation of firms in a lower-upper stream in an industrial organization. In our model, the individual (R, nQ) policies play an important role in generating a propagation effect across the different layers of the economy, and the propagation turns into the large fluctuations and amplifications of sectorial productions.