A scale-invariant network model, calibrated by link density, reconstructs Dutch firm-to-firm supply networks and preserves density predictions across aggregation levels.
Revealing production networks from firm growth dynamics
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abstract
We study the correlation structure of firm growth rates. We show that most firms are correlated because of their exposure to a common factor but that firms linked through the supply chain exhibit a stronger correlation on average than firms that are not. Removing this common factor significantly reduces the average correlation between two firms with no relationship in the supply chain while maintaining a significant correlation between two firms that are linked. We then investigate if this observation can be used to reconstruct the topology of a supply chain network using Gaussian Markov Models.
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Multi-scale reconstruction of large supply networks
A scale-invariant network model, calibrated by link density, reconstructs Dutch firm-to-firm supply networks and preserves density predictions across aggregation levels.