An International Minimum Wage

Would this mean minimum wage workers the world over effectively being paid in dollars rather than their local currency? (Because their salary in local currency would rise and fall with the dollar.)

Or would wages be reset, say, annually based on whatever the level of the dollar was at the time?

I dunno, it feels like it would be ceding control over a chunk of your economy to the whims of the US political process. (Because of course it will be Americans forcing labour to be more expensive in Vietnam, not Europeans forcing labour to be more expensive in America… the Americans would never accept that.)