It’s almost impossible to tell or coordinate.

What currency is the universal wage in? USD? EUR? CNY?

Is it the same everywhere? Do you adjust for purchasing power? How?

What you’re suggesting requires global cooperation on a scale that is inconceivable today. Nations would have to give up economic power in ways that no one would do today. You’d need a global government. We are nowhere near that and probably won’t ever be unless an extraterrestrial threat exists.