In 2014, retail companies in Chile had sales equivalent to US $ 76 000 millions, however, supermarkets only contribute about 20% of the total of these sales. In addition, in the Coquimbo Region, the supermarket sales index is one of the lowest 4 in the country. That is why the sustainable management model is developed, since in such changing contexts increasing competitiveness is urgent and strategic. This research aims to perform an analysis of the factors that affect sustainable management, these are: organizational factors, environmental factors, organizational commitment to sustainability, transactional leadership and transformational leadership. In turn, sustainable management will influence competitiveness, proposing a model with 8 hypotheses. A labor force represented by a sample of 361 workers is taken as the target population. For the contrast of the proposed model, the method of structural equations is used, through those of Partial Least Squares (PLS). It was determined that the previously mentioned constructs explain in 81.6% the variance of sustainable management, and this, in turn, explains in 68.4% the variance of competitiveness, accepting the total of the hypotheses made.