TY JOUR TI Game Theory in Modeling Competitive Strategies of Financial Institutions KW game theory KW financial institutions KW competitive strategies KW modeling market behavior KW Nash equilibrium KW oligopoly in the financial sector KW strategic interaction KW systemic risk KW dynamic games KW cooperative and non-cooperative games KW decision-making in conditions of uncertainty JO Journal of Applied Research AU Ozova, Z.A. PY 2026 IS 0 PB ITBO University