Afanasiev I. Raising the level of economic efficiency of resource use of iron ore raw materials at mining enterprises.

Dissertation is devoted to the theoretical substantiation and development of methodological approaches and practical recommendations for improving the economic efficiency of resource use of iron ore raw materials at mining enterprises. Suggested is a methodical approach to evaluating and forecasting of the level of economic efficiency of concentrate production on the grounds of clarification of its output from ores by compensating errors in determining the quality parameters of iron ore raw materials, which allows for more efficient use of production capacity of mining enterprise by reducing losses in the extraction of metal concentrate. Improved are the methodical approaches to evaluating and forecasting of technical and economic parameters of ore flows, determination of the volume of concentrate output. The economic and mathematical model of determination of optimal manoeuvring area of interchange of raw material resources in ore flows by the criterion of quality is designed; determined is a task formulation, the optimization of which allows to determine rational volumes of concentrate production based on a specified level of reliability of forecasting and relative quantitative evaluation of the production and economic risk, to raise the level of efficiency of resource use of iron ore raw materials at a mining enterprise. The results of dissertation are implemented at the LLC "Department of Economics of the Academy of Mining Sciences of Ukraine", PJSC "Inguletsky Mining Combine". Sector - the economy (mining).