The XX Congress of the CPSU drew attention to the insufficient use of statistical data in economic science.In the course of mining economics found application of data collected by industrial statistics, and statistical methods in the analysis of reporting, planning and other calculations. Thus, in the course “Economics of the Coal Industry of the USSR” A. A. Zvorykin, D. M. Kirzhner and M. B. Kundin, in addition to operating statistical materials and methods, there is a section devoted to the presentation of the importance of issues of statistical method in the application of the mining industry.

The question of the structure of production is important both on the scale of the branches of the national economy and for individual enterprises. It is connected with reproduction in various branches, assortment of consumer goods and improvement of product quality.In statistical and economic analysis of shifts in the assortment and quality of products, the index method is of considerable importance. The system of various indices comprehensively outlines and quantitatively measures these structural changes and differences.