Correctness at Evaluation of the Output and Methods for it Improvement

Theoretical and applied problems of the correctness at evaluation of the output in the System of the National Account (SNA) are examined in the study. It makes experiments to elaborate and to put in to practice different methods for improvement of the correctness at the evaluation of the output. First, it is examined the theoretical problems connected with "pure branch", the units in the SNA, the inflation and the import output. Second, it is given different proposals for using these methods in the statistical practice as is pointed their priorities.