8. Illicit Art Trade
Buying and selling art ranks 8th on our list of biggest illegal industries and black markets in the world. It is extremely profitable. Collectors are in need of art pieces, and shady people are in need of money, so they steal priceless paintings and other forms of art and sell them to rich collectors who are ready to pay a high price possessing something that worthy. The industry generates about $6 billion annually.
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