Modelling the migration of commercial bank clients
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The study uses network theory to model the migration of commercial clients of banks. For want of real data, the authors begin by generating a network composed of the commercial clients on a banking market with several players. The interstices are the companies and each company's banking affiliation corresponds to an internal coordinator. The transactions among the companies - through the company's own bank or another bank - pass along the directed lines. At the centre of the examination based on the network generated stand the equilibrium properties of the bank-choice strategy and the phenomenon of client migration. The market equilibrium of the model - contrary to one of the main assertions of neo-classical equilibrium theory - is not clear in this model and several states of equilibrium may ensue. It was found while modelling the client migration that there is no newly migrated client in two-thirds of cases in the network of commercial clients. In the worst case, marked waves of migration occur. Finally, the authors seek to discover what topological features are typical of the key companies from the client migration point of view. It is found that the number of partners does not characterize in every case the key companies from the client migration point of view.
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