Local Multipliers, Mobility, and Agglomeration Economies
研究发现，在劳动力流动性高的地区，可贸易部门新增一个岗位会在非贸易部门创造大量额外就业；而流动性低时乘数消失，证实了劳动力流入多的地区乘数更大，且可贸易部门的集聚经济对非贸易部门有显著正向溢出。
This paper demonstrates that when one new job is generated by attracting a new business in the tradable sector in a local economy, a significant number of additional jobs are created in the nontradable sector when labor mobility is high. However, these multipliers disappear when labor mobility is low. This paper confirms that regions with higher labor inflow have larger multipliers. Furthermore, the spillover effect of agglomeration economies in the tradable sector is significantly positive on the nontradable sector.