A '''black market''' transaction is the illegal sale of rationed goods, without coupons. A '''gray markey''' transaction is the buying and selling (or trading) of coupons. In wartime governments usually tolerate gray markets and crack down hard on black markets. | A '''black market''' transaction is the illegal sale of rationed goods, without coupons. A '''gray markey''' transaction is the buying and selling (or trading) of coupons. In wartime governments usually tolerate gray markets and crack down hard on black markets. |