TY JOUR TI KW The tax code KW personal income tax KW progressive scale of taxation KW wages KW the level of the tax base JO MOSCOW ECONOMIC JOURNAL AU Valiev, D.S. AU Zhelonkina, E.E. AU Habarova, I.A. AU Gulina, A.V. AU Habarov, D.A. PY 2018 IS 3 PB Electronic science