TY JOUR TI SCIENTIFIC AND METHODOLOGICAL APPROACHES TO ASSESSING THE EFFECTIVENESS OF THE COMPANY'S EMPLOYEES' WORK KW labor efficiency of employees KW scientific and methodological approaches KW tools for evaluating efficiency KW the concept of sustainable development JO Trade, service, food industry AU Demchenko, S.K. AU Revkuts, A.V. AU Solovyova, A.A. PY 2021 IS 1 PB Siberian Federal University