TY JOUR TI Improving the Financial Support of Pension Insurance in Russia KW pension system KW pension payment KW funding of an insurance pension KW the budget of the Pension Fund KW insurance contribution KW remuneration KW tax burden KW progressive taxation JO Bulletin of Kemerovo State University. Series: Political, Sociological and Economic sciences AU Cherney, D.O. PY 2021 IS 2021 PB Kemerovo State University