This paper presents a North–South model with differentiated goods being produced in the North. Each differentiated final good requires both management and manufacturing services as inputs, and firms are heterogeneous with regard to their productivity levels in providing these inputs. Two scenarios of relocating manufacturing to the South, which are interpreted to correspond to vertical foreign direct investment (FDI) and offshoring, are investigated. In both cases there is a minimum level of management productivity required for firms to benefit from relocation of manufacturing to the South. In the case of offshoring, productivity and profit gains are relatively larger for firms with low initial manufacturing productivity. Firms with high initial productivity in both aspects choose not to offshore owing to the presence of fixed costs. The model is subsequently used to examine the implications of global economic integration on the type of firm that exits an industry, changes production location or keeps manufacturing domestically.