00605naa#a2200181#i#450# EN\\bibl\69419 20241126153321.2 2500-3372 20230811b2023####ek#y0engy0150####ca RU Development Trends of Private Investors’ Portfolio Investment Market in the Russian Federation Journal article Kemerovo Kemerovo State University 2023 7 с. Journal article local Trufanova Anastasiya Andreevna Kalacheva Irina Vladimirovna Tihonova Alina Vladimirovna vestnik-hss.kemsu.ru