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Could you link to some good studies or surveys or blog posts on this? The narrative I always hear for the US is that immigration is in general a good thing (but trans Atlantic/Pacific migration might be creating a strong positive selection bias).
I didn't study the USA situation, that one is perhaps overall positive. It depends on uncertain estimates of the impact of illegal immigrants from the south (negative impact) vs. legal ones from India, China etc. (positive impact)
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