List of Articles Seyed Jafar Sadjadi Article 1 - Analysis of Labor-Management Negotiation based on Chicken Evolutionary Game and Catastrophe Theory 20.1001.1.17355702.2020.16.4.6.5 10.30495/jiei.2021.1895839.1050 ahmad makui Seyed Mohammad Seyedhosseini Parinaz Esmaeili Seyed Jafar Sadjadi Journal of Industrial Engineering International , Issue 5 , Year , Autumn 2020 Article 2 - Joint pricing and production management: a geometric programming approach with consideration of cubic production cost function Seyed Jafar Sadjadi Aghil Hamidi Hesarsorkh Mehdi Mohammadi Ali Bonyadi Naeini Journal of Industrial Engineering International , Issue 2 , Year , Spring 2015 Article 3 - A multi-product, multi-period model to select supplier for deteriorating products while considering uncertainty as well as backorder 20.1001.1.17355702.2020.16.3.1.8 Mohsen Lashgari Seyed Jafar Sadjadi Misugh Sahihi Journal of Industrial Engineering International , Issue 4 , Year , Summer 2020