Multi-criteria decision making methods are extensively used in decision making problems. Decision making is the process of selecting the best option among other options. Classification of companies by their financial performances is also considered as a decision making problem. This study compares the financial performance of seven large scale companies listed on the BIST Corporate Governance Index for years from 2009 to 2012. The PROMETHEE (Preference Ranking Organization Method for Enrichment Evaluations ) and the AHP methods are used in a hybrid structure to evaluate the financial performance and to decide on the best performing firm for the 4 year period. The calculation of financial performance measures is based on six main criteria and fifty sub-criteria. Using this relevant hybrid structure, our study suggests that TUPRS Joint Stock Company (JSC.) has the best financial performance compared to other companies.
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