00488naa#a2200157#i#450# EN\\bibl\124877 20260604052520.4 2221-3260 20260331b2026####ek#y0engy0150####ca RU Theoretical economy: developing the concept with new ideas Journal article Yaroslavl Yaroslavl State Technical University 2026 8 с. Journal article local Gordeev Valery Alexandrovich theoreticaleconomy.ru