Model of the ill-defined economic balance

One of the approaches on the study of models of nonstationary economic systems is based on the confession of modes of the production and consumption stationary under certain terms. The amounts produced and consumed products are considered as a vector with constant components, brought about the unit of the time. One of the variants of the decision of the given task in term of nonstationarity can be a variant, under which components of vectors produced and consumed products, are considered as ill-defined intervals. The paper considers the development of the model of an ill-defined economic balance and a mechanism of searching for ill-defined conditions and elements of the system by using the economic values, prices and profit.