Here are a few
I'm not an economist but here are a few off the top of my head: 1. USD denominated investment's performance will suffer in foreign currency terms. 2. USD denominated debts and obligations will shrink in foreign currency terms. 3. Foreign imports into the US become more expensive, less attractive and therefore exporting countries may suffer. Vice versa for US exports. 4. Global move towards shifting from using the green buck as reserves to other currencies - primarily Euro. 5. More tourism incoming to the US and less the other way around. Btw, one of the main reasons is a growing trade deficit rather than a recession.