EN
This paper compares the performance of the general business indicators for the Polish industry compiled by the Central Statustical Office (CSO) and the Research Institute of Economic Development (RIED) in the framework of their separate industrial surveys. The RIED's indicator is calculated in two versions, according to its own formula and according to the EU harmonized formula. Both versions of the RIED's indicator differ substantially from the indicator published by the CSO, not only in terms of individual values but also in terms of the tendencies (direction of change). This is because of the different concepts of the general indicator employed by the two sources and the different coverage of their surveys. Neither the CSO indicator nor one of the two versions of the RIED indicator can be considered to be better, or more accurate, than the other. The available indicators reflect different aspects of business conditions and they should be viewed as complements rather than substitues.