i have a degree in economics, it's mostly theoretical, there's just too many externalities to factor in to really predict how anything will work out. in the mid and high level econ courses, 40% was an a since you could really argue most answers as being correct even if there was a "right" answer. that said, trump does have it right that squashing the illegal labor market drives real wages up, and throwing illegals out will ease the housing shortage.
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