Yousefzadeh, Mehdi, Feghhi Farahmand, Naser, Iranzadeh, Soleyman (2022). Presenting a policy model for managing the supply chain risks of raw materials in conditions of uncertainty with a systems dynamics approach (Case study: Refractory industries). *Public Policy In Administration*, 13(46), 199-215. 10.30495/ijpa.2022.67177.10879