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Feasible and equilibrium solutions to the closed Leontief models

Our paper explores the solvability of the closed Leontief models, described by weak inequalities. We analyze the existence of two types of solutions defined for such models, namely feasible and, respectively equilibrium solutions. Our developments take into consideration the role of the following elements that characterize the model matrix: spectral radius, structure of communication classes and eigenstructure. Three different Leontief models are used as examples for illustrating the key points of our work.