If the value of USD is higher relative to an alternative currency, then you can earn USD in the US and visit a foreign country, convert USD to local currency, a

If the value of USD is higher relative to an alternative currency, then you can earn USD in the US and visit a foreign country, convert USD to local currency, and achieve higher purchasing power relative to local wages there. Or simply buy foreign produced goods cheaper (e.g. Chinese produced goods on Amazon). e.g. Exchange rate induced deflation