CASCADES IN WORLD INPUT–OUTPUT NETWORK: ILLUSION OF STABILITY

Andrey Leonidov (), Stanislav Radionov and Ekaterina Vasilyeva
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Andrey Leonidov: Theoretical Physics Department, P.N. Lebedev Physical Institute, 53 Leninsky prospect, Moscow 119991, Russia
Ekaterina Vasilyeva: Theoretical Physics Department, P.N. Lebedev Physical Institute, 53 Leninsky prospect, Moscow 119991, Russia

Advances in Complex Systems (ACS), 2022, vol. 25, issue 04, 1-35

Abstract: In this study, we address an issue of stability of global production network by constructing a scheme combining classical Leontieff input–output analysis and modeling of contagion in financial networks. We propose a model of disruptive cascades in global economy with nonlinear effects similar to those in the financial contagion model proposed by Elliott, Golub and Jackson (2014). We apply the model to the analysis of stability of the global input–output sectoral network using the data from the World Input-Output Database (WIOD). We show that this sectoral network appears to be very stable with respect to sectoral shocks. However, by introducing synthetic substructure of economic sectors in the WIOD data we show that this stability is to a significant extent an artifact of working with aggregated data. Namely, we show that the impact of economic shocks may be much more pronounced if an underlying disaggregated network is sufficiently sparse.

Keywords: World input–output network; cascade; stability; sector; aggregation (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1142/S0219525922500084

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