Quote:
Originally Posted by nomadking
And if that person wasn't in this country, would that job mysteriously not exist? But how much of that tax is from income that non-immigrants would have earned instead. It's not exactly new income that wouldn't have existed if they hadn't come here. Maybe some of it, simply from the extra demand of extra people being here. Then you have to factor in the money they send abroad. The effect of that is many times the amount involved. Normally money will pass from A to B to C etc within this country. They all earn an income with the same money. If it goes from A to B and then out of the country, it is lost income and GDP for this country.
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Any specific job might have already existed but in the aggregate more workers should produce more output producing more jobs. Yes, part of it is the extra demand more people makes. That's the GDP per head increased slower than GDP during the early 2000s when we had an increase in EU migration.
However you're assuming there is a static amount of work. More economic activity should generate more work. It's a pretty foundational concept to how our economic system works. There isn't a static amount of money or work to be done.