TY JOUR TI STRUCTURAL TRANSFORMATIONS AND MECHANISMS FOR ENSURING THE SUSTAINABLE DEVELOPMENT OF THE RUSSIAN AGRICULTURAL SECTOR IN THE CONTEXT OF MACROECONOMIC INSTABILITY KW agricultural sector KW structural transformation of the industry KW investment activity KW institutional regulatory mechanisms KW reproduction processes KW state agrarian policy JO Russian Journal of Management AU Gagarina, M.V. PY 2026 IS 14 PB Publishing Center RIOR