EN
First part of the paper deals with theoretical foundations underlying the choice of the weighing system applicable to the general indicator of business, compiled from the RIED’s survey data. The second part presents three concepts of non-stationary weights which might be used in calculating the synthetic indicator of business from a survey data covering major sectors of the economy. these are: (a) intermediate weight system based on the Dynamics of the economy, (b) adaptive adjustment of weight link to the GDP growth rate, (c) quotient weighing system favoring the most dynamic sectors. in the author’s view the latter is the best alternative to the system of constant weights used in the RIED’s practice.