The correlation between the dollar-yen exchange rate and the Nikkei a measure of how closely linked their movements are was 0.97 from mid-November to Feb. 1, but slipped to 0.70 for the period from the beginning of February through Wednesday.
As a consequence, their proposed solutions do not address the underlying instability of the current system of floating paper currencies that bob about on foreign exchange markets whipped this way and that by forces that have little, if any correlation to the so-called underlying fundamentals.