Threshold sensitivity of the production network topology

Molnár, Eszter and Csala, Dénes (2023) Threshold sensitivity of the production network topology. Applied Network Science, 8 (1): 71. ISSN 2364-8228

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Abstract

Industries today are tightly interconnected, necessitating a systematic perspective in understanding the complexity of relations. Employing network science, the literature constructs dense production networks to address this challenge. However, handling this high density involves carefully choosing the level of pruning to retain as much information as possible. Yet, current research lacks comprehensive insight into the extent of distortion the data removal produces in the network structure. Our paper aims to examine how this widespread thresholding method changes the production network’s topology. We do this by studying the network topology and centrality metrics under various thresholds on inter-industry networks derived from the US input-output accounts. We find that altering even minor threshold values significantly reshapes the network’s structure. Core industries serving as hubs are also affected. Hence, research using the production network framework to explain the propagation of local shocks and disturbances should also take into account that even low-value monetary transactions contribute to the interrelatedness and complexity of production networks.

Item Type:
Journal Article
Journal or Publication Title:
Applied Network Science
Subjects:
?? network sciencemonetary transactionsproduction networkthresholdinput-output analysis ??
ID Code:
206794
Deposited By:
Deposited On:
10 Oct 2023 08:40
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Jul 2024 00:21