a. Cross elasticity (4pts): Suppose that when the price of good X rises by 50%, the quantity of good Y demanded rises by 40%.
i) calculate the cross elasticity between goods X and Y.
ii) Determine whether good X and Y are substitutes or compliments. How do you know?
Please show all work and please explain it.Thank you.
a. Cross elasticity (4pts): Suppose that when the price of good X rises by 50%, the quantity of good Y demanded rises by 40%.
i) calculate the cross elasticity between goods X and Y.
ii) Determine whether good X and Y are substitutes or compliments. How do you know?
Please show all work and please explain it.Thank you.
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(a) Explain why the cross elasticity of demand for substitute goods is positive and the cross elasticity of demand for complements is negative.
(b) Explain why the price elasticity of demand changes along a linear demand curve.
(c)
Income | Px | Py | Quantity of good x | Quantity of good y |
$30,000 | $6 | $3 | 2 | 20 |
$50,000 | $6 | $4 | 5 | 10 |
(i) Using the information in the table, calculate the income elasticity of demand for good X and characterize the good. Use the midpoint formula.
(ii) Can you calculate the income elasticity of demand for good Y? If you can, show your calculation and characterize the good. If you cannot, explain why.
1. Calculate the price elasticity for the following good. State whether the price elasticity of demand is elastic, unit elastic, or inelastic. Will revenue rise, decline, or stay the same with the given change in price? Be sure to show your work. The price of water beds rises from $500 to $600. Quantity demanded falls from 100,000 to 80,000.
2. Calculate the income elasticity of demand for the following good. State whether it is a luxury, a necessity, or an inferior good. Explain. Show your work. As income decreases from $20,000 to $18,000 per year, demand for summer cottages in Vermont decreases from 80 to 75.
3. When the price of ketchup rises by 15 percent, the demand for hot dogs falls by 10 percent. Calculate the cross-price elasticity of demand. Are the goods complements or substitutes?
4. Use the accounts listed below to answer the following questions about the profit of a retail business.
Total Revenue | $80,000 |
Hired Labor | $30,000 |
Inventory purchased for resale | $20,000 |
Interest that the owner could have earned on an alternative investment | $2,000 |
Income that the owner could have earned by renting the firm |