Other Elasticities - AP Microeconomics
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What does a price elasticity of supply greater than one indicate?
What does a price elasticity of supply greater than one indicate?
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Supply is elastic. Supply responds proportionally more than price changes.
Supply is elastic. Supply responds proportionally more than price changes.
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What is the formula for income elasticity of demand?
What is the formula for income elasticity of demand?
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$E_{i} = \frac{\text{Percentage change in quantity demanded}}{\text{Percentage change in income}}$. Measures how quantity demanded responds to income changes.
$E_{i} = \frac{\text{Percentage change in quantity demanded}}{\text{Percentage change in income}}$. Measures how quantity demanded responds to income changes.
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What does a cross-price elasticity of demand less than zero signify?
What does a cross-price elasticity of demand less than zero signify?
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Goods are complements. Negative cross-price elasticity indicates complementary goods.
Goods are complements. Negative cross-price elasticity indicates complementary goods.
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If two goods are unrelated, what is their cross-price elasticity?
If two goods are unrelated, what is their cross-price elasticity?
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Zero. No relationship means no cross-price effect.
Zero. No relationship means no cross-price effect.
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Find the cross-price elasticity if demand for good A decreases 20% when price of good B increases 10%.
Find the cross-price elasticity if demand for good A decreases 20% when price of good B increases 10%.
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-2. $\frac{-20%}{10%} = -2$
-2. $\frac{-20%}{10%} = -2$
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What does perfectly elastic supply mean for a price change?
What does perfectly elastic supply mean for a price change?
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Infinite elasticity; any price change alters supply. Supply is infinitely responsive to price changes.
Infinite elasticity; any price change alters supply. Supply is infinitely responsive to price changes.
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Calculate income elasticity if demand decreases 5% as income increases 10%.
Calculate income elasticity if demand decreases 5% as income increases 10%.
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-0.5. $\frac{-5%}{10%} = -0.5$
-0.5. $\frac{-5%}{10%} = -0.5$
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What is the formula for cross-price elasticity of demand?
What is the formula for cross-price elasticity of demand?
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$E_{xy} = \frac{\text{Percentage change in quantity demanded of good } x}{\text{Percentage change in price of good } y}$. Measures how demand for good x responds to price changes in good y.
$E_{xy} = \frac{\text{Percentage change in quantity demanded of good } x}{\text{Percentage change in price of good } y}$. Measures how demand for good x responds to price changes in good y.
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What is the formula for income elasticity of demand?
What is the formula for income elasticity of demand?
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$E_{i} = \frac{\text{Percentage change in quantity demanded}}{\text{Percentage change in income}}$. Measures how quantity demanded responds to income changes.
$E_{i} = \frac{\text{Percentage change in quantity demanded}}{\text{Percentage change in income}}$. Measures how quantity demanded responds to income changes.
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Identify the elasticity when a good is a normal good.
Identify the elasticity when a good is a normal good.
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Positive income elasticity of demand. Normal goods have demand that increases with income.
Positive income elasticity of demand. Normal goods have demand that increases with income.
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What does a price elasticity of supply greater than one indicate?
What does a price elasticity of supply greater than one indicate?
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Supply is elastic. Supply responds proportionally more than price changes.
Supply is elastic. Supply responds proportionally more than price changes.
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Identify the elasticity when a good is an inferior good.
Identify the elasticity when a good is an inferior good.
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Negative income elasticity of demand. Inferior goods have demand that decreases as income rises.
Negative income elasticity of demand. Inferior goods have demand that decreases as income rises.
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State the relationship between two goods when cross-price elasticity is positive.
State the relationship between two goods when cross-price elasticity is positive.
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The goods are substitutes. Higher price of one good increases demand for the other.
The goods are substitutes. Higher price of one good increases demand for the other.
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State the relationship between two goods when cross-price elasticity is negative.
State the relationship between two goods when cross-price elasticity is negative.
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The goods are complements. Higher price of one good decreases demand for the other.
The goods are complements. Higher price of one good decreases demand for the other.
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What does a zero cross-price elasticity indicate about two goods?
What does a zero cross-price elasticity indicate about two goods?
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The goods are unrelated. Price changes of one good don't affect demand for the other.
The goods are unrelated. Price changes of one good don't affect demand for the other.
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What is the significance of an income elasticity greater than one?
What is the significance of an income elasticity greater than one?
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The good is a luxury good. Demand increases faster than income rises.
The good is a luxury good. Demand increases faster than income rises.
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What is the significance of an income elasticity less than one but positive?
What is the significance of an income elasticity less than one but positive?
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The good is a necessity. Demand increases but slower than income rises.
The good is a necessity. Demand increases but slower than income rises.
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Calculate the income elasticity if quantity demanded rises 10% with a 5% income increase.
Calculate the income elasticity if quantity demanded rises 10% with a 5% income increase.
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- $\frac{10%}{5%} = 2$
- $\frac{10%}{5%} = 2$
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Calculate the cross-price elasticity if quantity demanded rises 5% with a 10% price increase of another good.
Calculate the cross-price elasticity if quantity demanded rises 5% with a 10% price increase of another good.
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0.5. $\frac{5%}{10%} = 0.5$
0.5. $\frac{5%}{10%} = 0.5$
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Which elasticity would indicate a necessity good?
Which elasticity would indicate a necessity good?
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Income elasticity between 0 and 1. Between 0 and 1 indicates normal good with proportional response.
Income elasticity between 0 and 1. Between 0 and 1 indicates normal good with proportional response.
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What does an income elasticity of -0.5 indicate?
What does an income elasticity of -0.5 indicate?
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The good is inferior. Negative value means demand falls as income rises.
The good is inferior. Negative value means demand falls as income rises.
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What would you expect for cross-price elasticity of complementary goods?
What would you expect for cross-price elasticity of complementary goods?
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Negative value. Complements move in opposite directions with price changes.
Negative value. Complements move in opposite directions with price changes.
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If two goods are unrelated, what is their cross-price elasticity?
If two goods are unrelated, what is their cross-price elasticity?
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Zero. No relationship means no cross-price effect.
Zero. No relationship means no cross-price effect.
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What type of good has a positive income elasticity of demand?
What type of good has a positive income elasticity of demand?
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Normal good. Positive income elasticity defines normal goods.
Normal good. Positive income elasticity defines normal goods.
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Calculate the cross-price elasticity if a 15% price increase leads to a 30% demand decrease.
Calculate the cross-price elasticity if a 15% price increase leads to a 30% demand decrease.
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-2. $\frac{-30%}{15%} = -2$
-2. $\frac{-30%}{15%} = -2$
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Identify the type of elasticity: $E_{xy} = -1.5$
Identify the type of elasticity: $E_{xy} = -1.5$
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Cross-price elasticity indicating complementary goods. Negative cross-price elasticity indicates complementary relationship.
Cross-price elasticity indicating complementary goods. Negative cross-price elasticity indicates complementary relationship.
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Identify the type of elasticity: $E_{i} = 1.2$
Identify the type of elasticity: $E_{i} = 1.2$
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Income elasticity indicating a luxury good. Greater than 1 indicates luxury good classification.
Income elasticity indicating a luxury good. Greater than 1 indicates luxury good classification.
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What elasticity is used to determine the relationship between goods?
What elasticity is used to determine the relationship between goods?
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Cross-price elasticity of demand. Measures how one good's demand responds to another's price.
Cross-price elasticity of demand. Measures how one good's demand responds to another's price.
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Describe the demand when cross-price elasticity of demand is zero.
Describe the demand when cross-price elasticity of demand is zero.
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Goods are independent. Zero cross-price elasticity means no relationship exists.
Goods are independent. Zero cross-price elasticity means no relationship exists.
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What is the formula for price elasticity of supply?
What is the formula for price elasticity of supply?
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$E_s = \frac{\text{Percentage change in quantity supplied}}{\text{Percentage change in price}}$. Measures supply responsiveness to price changes.
$E_s = \frac{\text{Percentage change in quantity supplied}}{\text{Percentage change in price}}$. Measures supply responsiveness to price changes.
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