Each leader of the world must learn what economics is.
Now we must throw away the common sense of economics.
And we must have the new common sense of economics.
Finally, we must expect the panic of economics.
So, it's duty for each leader of the world to learn what economics is.
From now, the new panic of economics may occur many times.
Each leader of the world have the policy of that?
I don't think so.
Now It's time to learn.
Good knowledge saves the earth.