d. What will happen, in percentage terms, to the number of cans of tennis balls demanded if the price of tennis balls decreases 15 percent? (Need answer) e. What will happen, in percentage terms, to the number of cans of tennis balls demanded if average household income increases by 20 percent? (Need answer) f. What will happen, in percentage terms, to the number of cans of tennis balls demanded if the average price of tennis rackets increases 25 percent?

ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
Section: Chapter Questions
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Q. Wilpen Company, a price-setting firm, produces nearly 80 percent of all tennis balls purchased in the United States. Wilpen estimates the U.S. demand for its tennis balls by using the following linear specification:

Q = a + bP + cM + dPR.

Where Q is the number of cans of tennis balls sold quarterly, P is the wholesale price Wilpen charges for a can of tennis balls, M is the consumers’ average household income, and PR is the average price of tennis rackets. The regression results are as follows:

a. Discuss the statistical significance of the parameter estimates a^, b^, c^, and d^ using the p-values. Are the signs of b^, c^, and d^ consistent with the theory of demand?

Wilpen plans to charge a wholesale price of $1.65 per can. The average price of a tennis racket is $110, and consumers’ average household income is $24,600.

b. What is the estimated number of cans of tennis balls demanded?

c) At the values of P, M, and Pr given, what are the estimated values of the price (E^), income (E^m),

and cross-price elasticities (E^xr) of demand?

(Need answer) d. What will happen, in percentage terms, to the number of cans of tennis balls demanded if the price of tennis balls decreases 15 percent?

(Need answer) e. What will happen, in percentage terms, to the number of cans of tennis balls demanded if average household income increases by 20 percent?

(Need answer) f. What will happen, in percentage terms, to the number of cans of tennis balls demanded if the average price of tennis rackets increases 25 percent?

Note: Please provide answers for questions (d, e, and f)

Thank you

DEPENDENT VARIABLE: Q
OBSERVATIONS: 20
VARIABLE
INTERCEPT
P
M
PR
PARAMETER
ESTIMATE
425120.0
-37260.6
1.49
-1456.0
R-SQUARE F-RATIO
0.8435
STANDARD
ERROR
220300.0
12587
28.75
0.3651
460.75
T-RATIO
1.93
-22.96
4.08
-3.16
P-VALUE ON F
0.001
P-VALUE
0.0716
0.0093
0.0009
0.0060
Transcribed Image Text:DEPENDENT VARIABLE: Q OBSERVATIONS: 20 VARIABLE INTERCEPT P M PR PARAMETER ESTIMATE 425120.0 -37260.6 1.49 -1456.0 R-SQUARE F-RATIO 0.8435 STANDARD ERROR 220300.0 12587 28.75 0.3651 460.75 T-RATIO 1.93 -22.96 4.08 -3.16 P-VALUE ON F 0.001 P-VALUE 0.0716 0.0093 0.0009 0.0060
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