TY JOUR TI Company risk-opportunity analysis in conditions of high volatility KW volatility of the external environment; company risks and opportunities; quantitative risk assessment; fuzzy sets; economic and mathematical modeling JO JOURNAL OF REGIONAL AND INTERNATIONAL COMPETITIVENESS AU Borovkov, A.V. AU Uvarov, I.P. AU Storchun, B.I. PY 2025 IS 6 PB Yaroslavl State Technical University