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A series of multiple-choice questions and short essay problems related to the principles of microeconomics, specifically focusing on demand, elasticity, and consumer behavior. It includes questions on the law of demand, diminishing marginal value, demand curves, consumer surplus, and price elasticity calculations. The document also provides detailed explanations for some of the problems, enhancing its educational value for students studying introductory economics. It serves as a useful tool for self-assessment and exam preparation, covering key concepts in demand analysis and pricing strategies. Designed to test and reinforce understanding of fundamental economic principles.
Typology: Exams
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c. The sensitivity of income to price
d. Increase in income
Q = 8-2P+0.10I+Px
Where Q is quantity demanded,
P is the price of the product,
I is income, and
Px is the price of a related good.
Assume that P=$10, I=100, and Px=20.
Using the following equation for the demand for a good or service,
Calculate the price elasticity of demand
Price elasticity of demand= dQ/ dP * (P/Q) dQ/ dP= - Q=8 – 210 + .10100 + 20 = 18 Price elasticity = -2(10/18) =-1.*
Detailed Explanation
We use the arc price elasticity of demand formula:
e = [(Q 2 - Q 1 ) / {(Q 1 + Q 2 ) / 2}] / [(P 2 - P 1 ) / {(P 1 + P 2 ) / 2}]
Here, Q 2 = 6000
Q 1 = 8000
P 2 = $
P 1 = $
e = [(6000 - 8000) / {(8000 + 6000) / 2}] / [($250 - $200) / {($200 + $250) / 2}]
e = [(- 2000) / 7000] / [(50 / 225]
e = - 1.
That means absolute value of e is 1.3.