Just interested whether anyone can point me to a remotely similar situation - perhaps a commodity that is heavily controlled in some countries but traded freely in others - so that some understanding of the implications for the global market may be understood.
Gold was forbidden to own in the United States between 1933 and 1974, punishable by $10,000 fine and/or 10 years imprisonment.
Meanwhile in the free world, the price went up from $20 to $195 during that period.
Background.
This is potentially the most relevant thing to think about that anyone has posted here for a while.