The Economic Benefits from Immigration
解释了移民通过生产互补性使本地人受益，并指出美国当前移民的经济收益较小，每年约60亿美元，若吸引更多技能型移民则可大幅提高收益。
Natives benefit from immigration mainly because of production complementarities between immigrant workers and other factors of production, and these benefits are larger when immigrants are sufficiently ‘different’ from the stock of native productive inputs. The available evidence suggests that the economic benefits from immigration for the United States are small, on the order of $6 billion and almost certainly less than $20 billion annually. These gains, however, could be increased considerably if the United States pursued an immigration policy that attracted a more skilled immigrant flow.