Farzam Bahreini - Dept. of Business Management, Islamic Azad University, Qeshm Branch, Qeshm, Iran
Ismail Hassanpour Ghoroghchi - Dept. of Business Management, Islamic Azad University, Qeshm Branch, Qeshm, Iran
Vahid Reza Mirabi - Dept. of Management, Faculty of Management, Islamic Azad University, Central Tehran Branch, Tehran, Iran
Mohammad Hossein Ranjbar - Dept. of Accounting and Financial Management, Faculty of Humanities, Islamic Azad University, Bandar Abbas Branch

Introduction: Due to the limited resources and facilities that organizations face, we must first identify and prioritize the factors that are of higher importance to customers and will lead to their satisfaction, and then based on priority and importance. Agents took the necessary measures to provide goods and services that meet the highest degree of customer satisfaction. Therefore, the purpose of this study is to rank the criteria and sub-criteria affecting the decision to buy steel ingots customers and, in this regard, the role of ethical factors has been considered. Material and Methods: The method used in this research is DANP method. The statistical population was experts, business managers and CEOs of companies buying steel ingots, ۱۹ of which were selected by purposive sampling. The analysis tool was an interview and a questionnaire. The data analysis method was Dematel method and drawing their causal diagrams and ranking the factors influencing the decision-making process of steel ingots using ANP method. Results: The results showed that the criterion of economic factors of purchase with a weight of ۰.۲۲۰۸ ranked first, the criterion of specific factors of seller with a weight of ۰.۱۹۹۸ second, the criterion of ethical factors with a weight of ۰.۱۹۵۲ third, the criterion of specific factors of product with a weight of ۰.۱۹۲۳ fourth and finally Buying conditions factors with a weight of ۰.۱۹۱۹ are ranked fifth. Conclusion: The present study showed that the main factors in customers' purchasing decision include economic factors, seller-related factors, ethical relationship, product-related factors and factors related to purchase conditions.

Purchasing decision, Ethics, Causal model