Instability of the externalenvironment of enterprises in the context of the theory of uncertainty
The article is devoted to the theoretical aspects of researches of conditions, reasons of appearing and existing of instability of enterprise external environment’s functioning as the display of indetermination (unpredictability) market subjects. As a result making the management decisions occurs in conditions of uncertainty, due to insufficient information, needed for rational and expedient actions. The concepts concerning such phenom-enon and categories as risk, instability and uncertainty are presented.