In a traditional economy there isn't a thing as "black market" - all exchange is legal and no exchange needs to be taxed - so it's not a good answer.
The correct answer is: command. This is the case now in Venezuela, which is a command economy and which has a very thriving black market.
Henry Ford
After a few trials building cars and companies, in 1903, Henry Ford established the Ford Motor Company. Ford introduced the Model T in October of 1908, and for several years, the company posted 100 percent gains.
However, more than for his profits, Ford became renowned for his revolutionary vision: the manufacture of an inexpensive automobile made by skilled workers who earn steady wages.
In 1914, he sponsored the development of the moving assembly line technique of mass production. Simultaneously, he introduced the $5-per-day wage ($110 in 2011) as a method of keeping the best workers loyal to his company. Simple to drive and cheap to repair, half of all cars in America in 1918 were Model T's.
Summary of our basic rights gone over in the Constitution
