The black market is the active part of the economy that involves illegal business, usually buying and selling goods or services. The product itself may be illegal; the goods may be stolen or can be sold in any other way to avoid paying taxes as the exchange of goods. It’s called black market since conducted outside the law.
Many things are sold in the black market since bags to animals, the prices of this markets are lower than the in the legal market and they have profits of that. We have to avoid buying to those places because it prejudices to the economy and to the real brands.