Suppose the demand curves for goods A, B, and C have the following functional forms, where Q denotes quantity demanded, P denotes price, and M denotes income: QA = 120 - 3.5PA - 6PB + 14M QB = 100 - 2PB + 3PC + 1.1M Qc = 1500 -0.5Pc - 300M. Based on these demand curves, which of the following goods are known to be normal goods? A, B and C B A and B only C A

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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Suppose the demand curves for goods A, B, and C have the following
functional forms, where Q denotes quantity demanded, P denotes price,
and M denotes income:
QA = 120 - 3.5PA - 6PB + 14M
QB = 100 - 2PB + 3PC + 1.1M
Qc = 1500 -0.5Pc - 300M.
Based on these demand curves, which of the following goods are known
to be normal goods?
A, B and C
B
A and B only
C
A
Transcribed Image Text:Suppose the demand curves for goods A, B, and C have the following functional forms, where Q denotes quantity demanded, P denotes price, and M denotes income: QA = 120 - 3.5PA - 6PB + 14M QB = 100 - 2PB + 3PC + 1.1M Qc = 1500 -0.5Pc - 300M. Based on these demand curves, which of the following goods are known to be normal goods? A, B and C B A and B only C A
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