Curency value ?
Most international currencies like US dollar are fiat currencies. China owns a lot of USA debt. IMHO, a power shift will happen when China decides it can bear the loss and crashes the US dollar. Watch for oil deals in roubles and yuan. After that the Merkins can send delegations via yatchts to PomLand and France to learn how to become a 2nd world tourist trap now their empire is gone.
I agree with most of the assessments above. Global corps will increasingly avoid USA IP to avoid hassles. Also, as many originally big technology companies were USA in origin, there will be some confusion before general realisation strikes that only the C suite mostly lurks in USA. All real work, hardware and factory assembly is done in China. However, as Europe and USA go dark pushing renewables it is more likely all countries will have an economy crash after a mostly calm cold winter. If the western markets flounder Chinas leaders know they have a bigger problem. A suddenly impoverished middle class means instability. Flames welcome, it is a cold winter here.
Mine's the thick heavy overcoat with the balance pole beside it.