Steady coexistence of the subjects of the market representing the   private and state capital
  The sustainability conditions for the market participants with a different ownership model were also determined. It was revealed, that the nonlinear form of the equations describing the market behavior with the prevailing private capital, predetermines the development of such a market according to the subharmonic cascade scenario. The latter is presumably the reason of the periodically arising economic crises. 
Viktor I. Shapovalov