Abstract:     Actually, in Morocco, small and medium-sized enterprises (SMEs) are an important component of the economy representing 98% of total enterprises of the country. Today, the competitive industrial environment is encouraging these companies to rethink their manufacturing practices. Lean management (LM) has been widely implemented in several companies in Morocco and especially in Casablanca showing a positive impact on business performance and development, but what about social performance and the well-being of employees? This study aims to highlight a benchmark of countries and Moroccan publications about companies using Lean management tools. Then we will examine the impact of the implementation of these lean management tools on the social performance of small and medium-sized enterprises established in the region of Casablanca by studying the degree of stress perception and the workload by these employees, indeed we will highlight the recent progress of changing management shown in SMEs of Morocco.

Keywords:   Lean management; Social performance; Moroccan SME’s; Stress; Psychological performance.