EN
The analysis performed by the author shows that the production added measure as employed today in multi-plant corporations of the industrialcombine type does not promote production activities in this organizational form of companies. New formula of estimating production added and of creating disposable wage fund fulfils the condition of realization of the integration function as performed by this basic measure in assessment of activity of companies and their external units. The changes proposed by the author imply that the process of integration of activities of economic units should be considered also from the view point of rationalization of the self-financing system with in the industrial combine and application of the systems approach in administration of these companies.