Figure 7.11 Determining Parameters of Demand Functions D E F H K L M 1 Madison pricing model - finding demand funcitons 2 3 Two points on the demand curve (as esiimated by Madison) 4 Price Demand $70 400 $80 300 8 Linear demand curve Constant elaslcity demand curve 9 450 450 10 400 400 11 350 350 12 300 300 13 250 250 14 y=-10x + 1100 y=4E+06x2.154 200 200 15 150 150 16 100 100 17 50 50 18 19 20 $68 $70 $72 $74 $76 $78 S80 $82 $68 $70 $72 $74 $76 $78 S80 $82 21 Price Price 22 Demand Demand
Figure 7.11 Determining Parameters of Demand Functions D E F H K L M 1 Madison pricing model - finding demand funcitons 2 3 Two points on the demand curve (as esiimated by Madison) 4 Price Demand $70 400 $80 300 8 Linear demand curve Constant elaslcity demand curve 9 450 450 10 400 400 11 350 350 12 300 300 13 250 250 14 y=-10x + 1100 y=4E+06x2.154 200 200 15 150 150 16 100 100 17 50 50 18 19 20 $68 $70 $72 $74 $76 $78 S80 $82 $68 $70 $72 $74 $76 $78 S80 $82 21 Price Price 22 Demand Demand
Principles of Macroeconomics (MindTap Course List)
8th Edition
ISBN:9781305971509
Author:N. Gregory Mankiw
Publisher:N. Gregory Mankiw
Chapter5: Elasticity And Its Application
Section: Chapter Questions
Problem 4CQQ
Related questions
Question
In Example 7.1, two points on the
given (see Figure 7.11).
a. Suppose three additional points are estimated by
Madison: (1) demand of 460 when
(2) demand of 355 when price is $75, and
(3) demand of 275 when price is $85. With these
new points and the original two points, estimate
and interpret the best-fitting linear demand curve;
do the same for the best-fitting constant
demand
b. Calculate the mean absolute percentage error
(MAPE) for each of the two fits, linear and constant
elasticity, where each MAPE is the average of the
absolute percentage errors for the five points. On the
basis of MAPE, which curve provides the better fit?
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