12. The United States imposes an excise tax on the sale of domestic airline tickets. Let’s assume that in 2013 the total excise tax was $6.10 per airline ticket (consisting of the $3.60 flight segment tax plus the $2.50 September 11 fee). According to data from the Bureau of Transportation Statistics, in 2013, 643 million passengers traveled on domestic airline trips at an average price of $380.00 per trip. The following table shows the supply and demand schedules for airline trips. The quantity demanded at the average price of $380.00 is actual data; the rest is hypothetical.
| Price of trip | Quantity of trips demanded (millions) | Quantity of trips supplied (millions) |
| $380.02 | 642 | 699 |
| 380.00 | 643 | 698 |
| 378.00 | 693 | 693 |
| 373.90 | 793 | 643 |
| 373.82 | 913 | 642 |
What is the government tax revenue in 2013 from the excise tax?
On January 1, 2014, the total excise tax increased to $6.20 per ticket. What is the quantity of tickets transacted now? What is the average ticket price now? What is the 2014 government tax revenue?
Does this increase in the excise tax increase or decrease government tax revenue?