TY JOUR TI Uneven economic growth in Russia's regions: causes and solutions KW regional inequality KW inter-budgetary relations KW budget deficit KW tax differentiation KW individual development programs KW infrastructure loans JO JOURNAL OF MONETARY ECONOMICS AND MANAGEMENT AU Gurfova, S.A. AU Chilaev, A.S. AU Ashabaliev, I.C. PY 2026 IS 0 PB ITBO University