TY JOUR TI ECONOMIC EFFICIENCY OF ENVIRONMENTAL INVESTMENTS AND THEIR IMPACT ON KEY SECTORS OF THE REGIONAL ECONOMY: AGRICULTURE AND HEALTHCARE KW environmental investments KW agro-industrial complex KW healthcare KW correlation analysis JO Socio-economic and humanitarian magazine AU Khakhuk, S.A. AU Hahuk, B.A. PY 2026 IS 0 PB Krasnoyarsk State Agrarian University