TY JOUR TI FINANCING OF THE U.S.A PUBLIC DEBT AND ITS ROLE IN THE TRANSFORMATION OF GLOBAL FINANCIAL FLOWS KW U.S.A government debt KW key rate KW Fed KW Treasury bonds KW retirement account KW economics KW politics JO Russian Journal of Management AU Gagarina, M.V. AU Noskova, G.V. PY 2026 IS 14 PB Publishing Center RIOR