July 29, 2014

Homework Help: Economics: Price Elasticity

Posted by Anonymous on Thursday, October 2, 2008 at 6:56am.

Please check my answers whether they are correct or not. If not, please help me why they are wrong. Thank you.

Question 1:
Point: A (300, 1000)
Point B: (200, 1200)
According to the midpoint method, the price elasticity of demand for hot dogs between point A and point B is approximately ______, which suggests that the demand for hot dogs is __________ between the two points.

My Answer 1:
2.2, price elastic

Question 2:
A (20, 20)
B (18, 30)
C (10, 70)
D (8, 80)

According to the midpoint method, the price elasticity of demand points D and C is approximately ____ (1.67, 0.26, 0.6 or 3.8).

Suppose the price of basketballs is currently $20 per ball. Because the price elasticity of demand between points B and A is _________ (elastic, inelastic or unit elastic), a $10-per-ball rise in price will lead to ______ (no change, decrease or increase) in total revenue per year.

In order for a price decrease to cause a decrease in total revenue, demand must be _____ (elastic, unit elastic or inelastic).

My Answer 2:
no change

Question 3:
Data collected in the imaginary economy of Jojokabaha reveals that a 3% increase in income leads to the following changes:
9% decrease in the quantity demanded of bahaha
5% increase in the quantity demanded of bojojo
14% increase in the quantity demanded of rarabi

The income elasticity of demand for rarabi is ___________. (Be careful to keep track of the direction of change. Like the cross-price elasticity of demand, the sign of the economic elasticity of demand can be positive or negative, and important information is conferred by the sign.)

According to the income elasticity of demand, bahaha is _____ good and bojojo is _____ good.

Which of the following three goods is most likely to be classified as a luxury good?
a) Bahaha
b) Bojojo
c) Rarabi

My Answer 3:
Normal Good
Normal Good

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