TY JOUR TI TO THE QUESTION ABOUT ENCREASE OF LABOUR PRODUCTIVITY : ECONOMIC AND INSTITUTIONAL ASPECTS KW labor productivity KW production efficiency KW direct and indirect sources of a gain in labor productivity KW institutional factors of a gain in labor productivity KW ethical relation to business KW ethical policy of firm. JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Balabanova, G.. AU Zhuravleva , L.. PY 2016 IS 1 PB Belgorod State Technological University named after V.G. Shukhov