Specific statistical properties of the strength of links and nodes of the Estonian network of payments

Abstract

We investigated the strength of the interactions of the elements of the Estonian network of payments (link weight of payments and volume of payments) by the realization of particular experiments. Specific statistical measures of this network, which combine the topology of the relations of the strength of links and nodes and their specific weights, were studied with the purpose of discovering beyond the topological architecture of our network and revealing aspects of its complex structure. Moreover, scale-free properties between the strengths and the degree values were found. We also identified clear patterns of structural changes in such a network over the analysed period.

Keywords

• economic networks
• complex systems
• scale-free networks
• weighted networks
• strength of nodes.