A bootleg market can also be known as a black market, underground market or gray market. Other synonyms include illicit market, informal market, shadow economy, and parallel market. These markets are typically characterized by the sale of goods or services that are prohibited or restricted by law and are often operated by organized crime groups. The products sold on these markets can range from drugs and weapons to counterfeit goods and pirated software. Although these markets are considered illegal, they still exist and thrive in many parts of the world due to the high demand for these restricted goods and services.