Assume that sugar is initially traded freely in the US at the world price of $20 and at this world price the US imports 5,000 units of sugar. Then assume that the US enacts a quota of 2,000 units of imported sugar that raises the domestic price of sugar to $45. What is the most amount of revenue that the government can generate if it combines this quota with a licensing fee?
Answer is $50,000.
Please explain.