Font Size: 

We investigate the strength of the interactions of the elements of the Estonian network of payments (link weight of payments and volumes of payments) by the realization of particular experiments. We study specific statistical measures of this network which combine the topology of the relations of the strength of links and nodes and their specific weights with the purpose of discovering beyond the topological architecture of our network and reveal aspects of its complex structure. Moreover, we find scale-free properties in the distributions of the strengths and the degree values. We also identify clear patterns of structural changes in such network over the analyzed period.