%0 Journal Article %T Theoretical and Methodological Foundations of the Resource–Flow Method (RFM+) for the Representation of Technological Chains %A Dashut, E.S. %K resource–flow method; process–product tables; input–output tables; logarithm of value-added productivity; estimated costs of technological processes; technological chain; potential graph %J Theoretical economics %D 2026 %N 0 %P 22 %I Yaroslavl State Technical University