Immigration boosts innovation and wages in the US. The positive dynamic impact of immigration on innovation and wages dominates the short-run negative impact of increased labor supply. Increased immigration to the US since 1965 is estimated to have increased innovation and wages by 5%.

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Lambert 还指出了一个技术层面很少被外界提及的问题:不同模型之间存在微妙的数据分布差异。