%0 Journal Article %T Factor Model of Labor Productivity in the Coal Industry %A Kharlampenkov, E.I. %A Kudryashova, I.A. %K multiplicative model, elasticity of labor efficiency, labor intensity, labor costs, coal mining region, world coal prices, economic policy %J Bulletin of Kemerovo State University. Series: Political, Sociological and Economic sciences %D 2020 %N 5 %P 10 %I Kemerovo State University