Find a good that used to be produced in the U.S. but now is largely produced overseas and imported. Suppose you could hop into a time machine and go back to a time before that production was 'off-shored' and could convince people to only 'buy American' with regards to that particular product, with the end result being that the good's production was not offshored.

How would this 'buy American' approach affect the supply of U.S. dollars on the foreign exchange market? Given this, how would this affect the value of the US dollar relative to other currencies? Given your answer to that, how would this affect the import and export of other goods? What is the end result of your 'Buy American' policy, particularly with regards to other goods?