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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The first animals on Earth may have been sea sponges, study suggests

12月22日，一群野鸭和鸳鸯聚集在北海公园太液池上。图/IC photo

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