Question

So, if you find that revenue goes up when you use an elasticity of 2 to estimate the effect of changing the fee from $8 to $16, you can be sure that it will go up with a lower value of the elasticity. Question: Suppose that the increase in the fee from $8 to $16 reduces travel time in the central city from 30 minutes down to 20 minutes. What is the percentage change in the total cost of driving in central London

Answer 1

Answer:

The percentage change in the total cost of driving in Central London is:

= 33.33%

Explanation:

a) Data and Calculations:

Old Fee for driving per minute = $8

New Fee for driving per minute = $16

Percentage change in fee = $8/$8 * 100 = 100%

Driving time at old fee of $8 per minute = 30 minutes

Driving time at new fee of $16 per minute = 20 minutes

Percentage Change in driving time = 10/20 * 100 = 50%

Total cost of driving 30 minutes at old fee of $8 per minute = $240

Total cost of driving 20 minutes at the new fee of $16 per minute = $320

Therefore, the percentage change in the total cost of driving = ($320 -$240)/$240 * 100

= $80/$240 *100 = 33.33%