Presenting a productivity analysis model for Iran oil industries using Malmquist network analysis

Organizational performance evaluation is a crucial factor in making strategic decisions for the future. To plan economic growth, it important to measure efficiency and productivity of organizations. Efficiency key indicator evaluating optimal units. Petrochemical companies are vital components country's economy their operations contribute growth progress different sectors. In countries where relies heavily on this industry, such as ours, petroleum utmost importance. Data Envelopment Analysis widely used method measuring productivity. This study aims analyze relates supply chain petrochemical using network DEA Malmquist index. indices calculated each stage process. The determines through literature review, expert consultation, analysis, visits companies. input- output-oriented multiplier models assess overall efficiencies. Using values, index determined. examines unit years 1395 1398, results indicate that most units experienced during period.