Modular assembly in the car industry—an analysis of organizational forms’ influence on performance

In modular assembly, car manufacturers can choose to assemble the modules internally or to outsource the units assembling the modules. These module assembly units (MAUs) can be located inside or outside the assembly plants. This paper analyzes the conditions provided for MAU performance by ownership and location, the constitutive dimensions of a MAU's organizational form. Based on a case study at Volvo and theoretical arguments, the paper shows that organizational forms provide different conditions for MAU performance. It is concluded that no organizational form is best and that different forms should be used. It is also concluded that companies must control MAUs, which influences how the conditions provided by different organizational forms can be utilized.