Rediscovering the Shift-Share EM2 Model: A Decomposition Framework of Unbalanced Employment Growth at the Industrial Level

The unbalanced growth of employment among regions is ultimately attributed to the difference in industrial structure and competitiveness. At regional level, both shift-share EM1 EM2 models can realize purpose model, that is, thoroughly separate effects competitiveness on deviation. While expectation further achieve a complete separation deviation at model not competent, this precisely role model—to caused by differences level. Therefore, structural component competitive In process industrialization, manufacturing industry presents significant trend spatial dimensions. setting share covers balanced allocation reinterpreted as magnification or inhibition effect initial structure. order exclude influence scale difference, concept calculation method degree put forward. Finally, pattern China’s from 1999 2019 was analyzed using results show imbalance significant, forms north–south pattern, southeast northwest pattern. Taking Sichuan Province an example, application level demonstrated.