The cross-price elasticity of demand for rice relative to potatoes is 0.4. Select one or more: a. This implies that rice and potatoes are complements b. This implies that potatoes are a normal good c. This implies that rice is an inferior good d. This implies that rice and potatoes are substitute goods

Exploring Economics
8th Edition
ISBN:9781544336329
Author:Robert L. Sexton
Publisher:Robert L. Sexton
Chapter7: Market Efficiency And Welfare
Section: Chapter Questions
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Please explain which choices arre correct in these 2 multiple choice questions

 

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The cross-price elasticity of demand for rice relative to potatoes is
0.4.
Select one or more:
a. This implies that rice and potatoes are complements
b. This implies that potatoes are a normal good
c. This implies that rice is an inferior good
d. This implies that rice and potatoes are substitute goods
In a competitive market with free entry and exit from the market a
permanent rise in demand will lead to
Select one or more:
a. normal profits being made in the long-run
b. excess profits being made in the short run (before new firms
can enter)
c. a permanent rise in prices
d. entry by new firms
Transcribed Image Text:The cross-price elasticity of demand for rice relative to potatoes is 0.4. Select one or more: a. This implies that rice and potatoes are complements b. This implies that potatoes are a normal good c. This implies that rice is an inferior good d. This implies that rice and potatoes are substitute goods In a competitive market with free entry and exit from the market a permanent rise in demand will lead to Select one or more: a. normal profits being made in the long-run b. excess profits being made in the short run (before new firms can enter) c. a permanent rise in prices d. entry by new firms
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