Abstract:

Abstract In addition to the countries where developed food laws are effective, the packaging of all food products has gained importance with the Covid-19 epidemic in developing countries. This importance has brought with it an increase in the capacity of the companies producing food packaging machines. Konya, where packaging machinery enterprises form an ecosystem, is one of the first cities that come to mind in Turkey in terms of production diversity and capacity. These enterprises are also leading with their export capacity in many different geographies such as Central Asian Turkic Republics, Middle East and African countries. These enterprises stand out with their production variety and capacity opportunities, as well as cost and after-sales services. Businesses that have difficulty in choosing suppliers even in times of crisis may take different and compulsory decisions in the selection of suppliers in times of crisis when the demand increases excessively. Supplier selection is a complex process in which decision makers must consider multiple quantitative and qualitative factors with multiplier (symmetric) effects to achieve an optimum result. The purpose of choosing the right supplier is to increase competitiveness and product quality while meeting customer demand with minimum production cost. The aim of this study is to propose a combined multi-criteria decision making model (MCDM) for supplier selection of food packaging machinery manufacturers. In the first stage of the study, all criteria affecting the process were determined using the SCOR (Supply Chain Operations Reference) model and expert opinions. Incorporating hybrid fuzzy set theory into the Analytical Hierarchy Process (AHP) model is the most effective tool for tackling complex decision-making problems linked to various qualitative criteria; therefore, the Fuzzy Analytical Hierarchy Process (FAHP) was chosen to determine the weights of all potential suppliers. For the evaluation of supplier ranking, PROMETHEE II method, which makes full ranking, was used instead of PROMETHEE (Preference Ranking Organization Method for Encrichment Evaluations), which makes partial ranking. Based on the results of this research, researchers and decision makers will have the opportunity to adapt and apply appropriate methods to identify the most suitable material suppliers in the food packaging machinery industry. Keywords: MCDM, fuzzy set theory, SCOR model, FAHP, PROMETHEE II, machinery manufacturing industry, supplier selection

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