Strategies to Design Resilient Supply Network Structures

2017 ◽  
pp. 31-43 ◽  
Author(s):  
Rodrigo Reyes Levalle
Keyword(s):  
Network Structures ◽  
Supply Network

scholarly journals Catastrophic supply chain disruptions and supply network changes: a study of the 2011 Japanese earthquake

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Byung-Gak Son ◽  
Sangho Chae ◽  
Canan Kocabasoglu-Hillmer
Keyword(s):  
Supply Chain ◽  
Structural Changes ◽  
Network Density ◽  
Degree Centrality ◽  
Network Structures ◽  
Supply Network ◽  
The 2011 Tohoku Earthquake ◽  
Supply Chain Disruptions ◽  
Supply Networks ◽  
Content Type

PurposeCatastrophic supply chain disruptions can significantly damage the operational and financial performance of firms. While a growing body of literature on supply network structures has studied what influences supply networks' vulnerability to supply chain disruptions and capability to recover from them, it remains unclear how supply network structures change after major supply chain disruptions. We aim to provide an understanding of how these changes occur.Design/methodology/approachUsing a natural experiment approach and supply network data from Factset, this study investigates how firms' supply network structures change after experiencing the catastrophic supply chain disruptions caused by the 2011 Tohoku earthquake and tsunami in Japan. We capture post-earthquake supply network changes using the measures of degree centrality and ego network density.FindingsThe results of the analysis suggest that compared to unaffected firms, the affected firms experience changes in their supply network structures tending toward lower complexity measured by in-degree centrality, out-degree centrality and ego network density.Originality/valueThis study contributes to social network theory and the complex adaptive supply network literature by providing empirical evidence of structural changes in supply networks after catastrophic supply chain disruptions. A managerial contribution is made by providing a reflection on why these changes might be occurring and alert firms to the challenges of managing complexity in their supply networks.

scholarly journals Modelling and Optimization in Microgrids

2016 ◽  
Author(s):  
Tobias Porsinger ◽  
Przemyslaw Janik ◽  
Zbigniew Leonowicz ◽  
Radomir Gono
Keyword(s):  
Power Supply ◽  
Power Plants ◽  
Renewable Energies ◽  
Network Structures ◽  
Supply Network ◽  
Supply Networks ◽  
Practical Advice ◽  
New Concepts ◽  
Modelling And Optimization

The expansion of renewable energies is progressing strongly. The influence on the power supply networks by the volatility of the infeed must be met with new concepts. In this paper we investigate the possibilities of integrating microgrids as a cooperating unit in the power supply network to support further expansion of RES power plants. In this paper a differentiation of microgrids from similar network structures is established, a classification of proposed groups is made. Then, after the description of simulation of components in a microgrid, with practical advice, an example model is shown, which aids the dimensioning of the components within a microgrid to achieve a specified goal.

Problem behavior in autism spectrum disorders: A paradigmatic self-organized perspective of network structures

2019 ◽  
Vol 42 ◽  
Author(s):  
Lucio Tonello ◽  
Luca Giacobbi ◽  
Alberto Pettenon ◽  
Alessandro Scuotto ◽  
Massimo Cocchi ◽  
...  
Keyword(s):  
Autism Spectrum Disorder ◽  
Problem Behaviors ◽  
Autism Spectrum ◽  
The Self ◽  
Network Structures ◽  
Self Organized ◽  
Critical Equilibrium ◽  
Self Organized Criticality ◽  
Acute Agitation ◽  
Spectrum Disorders

AbstractAutism spectrum disorder (ASD) subjects can present temporary behaviors of acute agitation and aggressiveness, named problem behaviors. They have been shown to be consistent with the self-organized criticality (SOC), a model wherein occasionally occurring “catastrophic events” are necessary in order to maintain a self-organized “critical equilibrium.” The SOC can represent the psychopathology network structures and additionally suggests that they can be considered as self-organized systems.

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