Native American Gaming Enterprises

Indian Gaming enterprises comprise gambling businesses operated on Indian reservations or tribal land, which have limited sovereignty and therefore the ability to exist outside of direct state regulation.
In 1987, in a case called Cabazon Band of Mission Indians v. California, the U.S. Supreme Court recognized that, as sovereign political entities, federally recognized Native American tribal [...]

Growth of tribal gaming revenues

Source: www.nigc.gov

Tribal Gaming Revenues

Source: http://blogmedia.thenewstribune.com/media/Tribal%20gaming%20revenues.jpg