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Abstract
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The main aim of this research is to propose an inte grated Multi-Criteria Decision Making (MCDM) and bi-objective mathematical model for supplier selection and order allocation of lean manufacturers. Despite the vast quantity of research on Lean Manufacturing (LM) and its related tools, lean supplier selection and order allocation is less studied in the previous literature. To fill this gap, this study is conducted in four phases as follows. First, an initial list of leanness criteria is extracted from previous studies. Next, using an Analytic Hierarchy Process (AHP), these criteria are examined to be applied in a supplier selection process. Following, a Fuzzy Analytic Hierarchy Process (FAHP) is applied to select the suppliers according to lean supplier selection criteria. Last, a bi objective mathematical model is developed to determine the opti mum order allocation. The developed model is verified, validated, and a sensitivity analysis is conducted to suggest managerial impli cations according to different values of parameters.
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