My opinion on the fact Nickel prices have plummeted over the last 5 years? Check the chart I posted above.
In terms of the economies of the nations listed, all are carrying out unsustainable quantitative easing (money printing).
The ECB, the Federal reserve, the Bank of Japan and the PBOC.
What happens when they can no longer print money or their money printing fails to keep the economy afloat (as is happening now)?