THE IMMIGRATION SURPLUS REVISITED IN A GENERAL EQUILIBRIUM MODEL WITH ENDOGENOUS GROWTH*
在包含研发部门的内生增长一般均衡模型中重新分析Borjas（1995）的移民剩余，发现技能移民促进长期增长，但增长效应无法消除东道国技能劳动者受损的情况。
ABSTRACT We revisit the influential work of Borjas (1995) on the economic gain to the host population from immigration—“the immigration surplus.” We develop his analysis by using a general equilibrium endogenous growth model with endogenous capital and several sectors, including an R&D sector driving growth. Skilled immigration leads to a bigger R&D sector share resulting in higher long‐term growth. If skilled labor and physical capital are complements, this growth gain increases. Growth effects on the immigration surplus dominate the purely static effects of Borjas, but are not sufficient to eliminate the emergence of losers (skilled natives) within the host population.