In: Economics
Pam is in charge of putting on the NYE fireworks show. The show can either be anywhere from 10 - 20 minutes long. There are 4 neighborhoods in your city that each offer different views of the firework show, and thus each have a different marginal benefit from additional minutes of the show as shown in the table below:
Show Length in Minutes |
Marginal Benefit of Neighborhood A |
Marginal Benefit of Neighborhood B |
Marginal Benefit of Neighborhood C |
Marginal Benefit of Neighborhood D |
10 | $34 | $22 | $20 | $10 |
11 | $32 | $21 | $18 | $9 |
12 | $30 | $20 | $16 | $8 |
13 | $28 | $19 | $14 | $7 |
14 | $26 | $18 | $12 | $6 |
15 | $24 | $17 | $10 | $5 |
16 | $22 | $16 | $8 | $4 |
17 | $20 | $15 | $6 | $3 |
18 | $18 | $14 | $4 | $2 |
19 | $16 | $13 | $2 | $1 |
20 | $14 | $12 | $0 | $0 |
If each additional minute of the show costs $44, what is the optimal length of the show in minutes?
Since each additional minute of the show costs $44, each of the 4 neighborhoods is required to contribute $11 in taxes for each additional minute. Each neighborhood gets a vote on the maximum number of minutes they want the show to run based on this cost. What is the maximum length of the show that 3 of the 4 neighborhoods would accept?
The marginal benefits of all the four neighborhoods has to be considered together.
The criteria to be used is MB = MC
In other words, the duration where the marginal cost of an additional minute equals the marginal benefits, for all neighborhoods combined:
At 17 minutes duration: MB = $44 (20 + 15 + 6 + 3)
and MC = $44
Thus, the optimal length is 17 minutes
---
The table shows that neighborhood D would not like to pay more than $10 for any show duration.
Now, 3 out of 4 neighborhoods should be ready to contribute $11
Looking at their marginal WTP, it is observed that:
At a show duration of 14 minutes, at least 3 neighborhoods (A, B and C) are willing to pay $11, or more.
Hence, now the optimal length is 14 minutes
(Note: since neighborhood D will not pay $11, but only $6, there will be a shortfall, which A, B and C will have to bear. However, the price they pay will be much less than their maximum willingness to pay)