>>1309529>what is taught in schoolsLiterally Keynesian economics. Get outta here man!
>do not take it into accountThat's the problem, all your theoretical models don't take it into account. You just ignore it, because the models work when that part is pushed under the rug.
The labor buys the same amount of goods, yes, but now you've introduced a world of fucking pain by devaluing your country's market. And if, say, you applied this riddle to the USD, you would cause a sudden global economic catastrophe.