Answer:
Potential total surplus to increase.
Step-by-step explanation:
As we know that:
Producer Surplus = Market value - Minimum price to sell
This means that for Juan:
Market value at which he can sell the ticket to Mara was $200 and the minimum price that he will accept will be $120
By putting values, we have:
Liam's surplus = $200 - $120 = $70
Now
Consumer Surplus = Consumer willing to Pay - Consumer Paid
For Alexander, the amount he was willing to pay was $250 and what he actually paid was $200 if the regulation hasn't intervened.
Alexander's surplus = $250 - $200 = $50
This means that the regulation prevents the increase in the potential total surplus and this has increased the dead weight loss of $120 ($70 + $50).