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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近日,东南大学博士生导师陈洪兵教授在小红书上说:自从博士扩招,博士由考试入学改为考核入学后,博士生源质量明显下降,博士们根本不读书,水平比硕士还差。所以近年来他都是劝退想读他的博士的考生们,先想清楚再读博,宁缺毋滥。混个博士学位一点用都没有,纯粹浪费教育资源!

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As for Feldberg, during his 14 years on the platform he says he's noticed a number of changes including a more modern interface, more targeted ads, and the move away from seeing how many downvotes a post would attract.,这一点在同城约会中也有详细论述

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