Remarks on scaling properties inherent to the systems with   hierarchically organized supplying network
  We study the emergence of a power law distribution in the systems which can be characterized by a hierarchically organized supplying network. It is shown that conservation laws on the branches of the network can, at some approximation, impose power law properties on the systems. Some simple examples taken from economics, biophysics etc. are considered. 
V.Gafiychuk, I.Lubashevsky, A.Stosyk