But can the devaluing yen is merely a secret tactic for Japan to go back before Plaza Accord ?The purpose of interest rates isn’t suppose to rescue the Yen. It’s to keep themselves from plunging off the cliff which is why the UK and EU are hiking unlike the Japanese. Only the Federal Reserve can rescue them (or anyone else for that matter) by lowering interest rates and thus weakening the dollar.
Because one of the Plaza Accord clause is to revalue the yen which kills Japan's economy, now there is a chance to reverse the yen. and Japan take it gladly