I been getting that the dollar just may start to "go through the floor" as early as the third week in February.
All third world countries black market is a quite active & basic thing.
It may be wise to take a course on black market economy.
The underground economy or black market is a market consisting of all commerce on which applicable taxes and/or regulations of trade are being avoided. The term is also often known as the underdog, shadow economy, black economy or parallel economy.
In modern societies the underground economy covers a vast array of activities. It is generally smallest in countries where economic freedom is greatest, and becomes progressively larger in those areas where corruption, regulation, or legal monopolies restrict legitimate economic activity.