Final answer:
If the government price ceiling and the equilibrium price set by oil producers both are at $3.00 a gallon, the gasoline market would be efficient with no surplus or shortage. However, if a price ceiling is set below the equilibrium price, it would lead to a shortage and potential black market activity, representing an inefficient market.
Step-by-step explanation:
If the U.S. government imposes a price ceiling on gasoline at $3.00 a gallon, and oil-producing nations increase production to the point where the equilibrium price is also $3.00 a gallon, the U.S. gasoline market would be neither in surplus nor shortage; it would be efficient. This is because the market price (determined by supply and demand) equals the government-imposed price ceiling.
However, if the imposed price ceiling was lower than the equilibrium price, for example $1.30 as stated in the critical thinking question, there would likely be a shortage. A shortage occurs when the quantity demanded exceeds the quantity supplied at the given price, which could lead to black market activities as consumers vie for the limited supplies. In such a scenario, the market would be inefficient because the price ceiling would disrupt the natural equilibrium of the market, leading to underproduction and missed opportunities for consumer- and producer-surplus gains.