Microeconomics Elasticity of Demand and Supply
33 flashcards covering Microeconomics Elasticity of Demand and Supply for the MICROECONOMICS Microeconomics Topics section.
Elasticity of demand and supply is a fundamental concept in microeconomics that measures how the quantity demanded or supplied of a good responds to changes in price. Defined by the Principles of Microeconomics curriculum, elasticity helps to understand consumer behavior and market dynamics, providing insights into pricing strategies and market efficiency.
In practice exams or competency assessments, questions about elasticity often require calculations or interpretations of demand and supply curves. Common traps include confusing the concepts of elasticity with inelasticity, or misapplying the formula for calculating elasticity. It's essential to recognize the difference between elastic and inelastic demand, as well as how factors like substitutes and necessity influence these concepts.
One practical tip often overlooked is that understanding the context of elasticity can help in anticipating consumer reactions to price changes, which is crucial for effective decision-making in business and policy.
Terms (33)
- 01
What is price elasticity of demand?
Price elasticity of demand measures how much the quantity demanded of a good responds to a change in its price, calculated as the percentage change in quantity demanded divided by the percentage change in price (Mankiw, Principles of Economics).
- 02
What factors affect the price elasticity of demand?
The price elasticity of demand is influenced by factors such as the availability of substitutes, the necessity of the good, the proportion of income spent on the good, and the time period considered (Krugman, Principles of Economics).
- 03
How is the price elasticity of demand calculated?
Price elasticity of demand is calculated using the formula: Ed = (% Change in Quantity Demanded) / (% Change in Price), where Ed represents the elasticity coefficient (Wells, Principles of Economics).
- 04
What does it mean if the price elasticity of demand is greater than 1?
If the price elasticity of demand is greater than 1, it indicates that demand is elastic, meaning consumers are highly responsive to price changes (Mankiw, Principles of Economics).
- 05
What is unitary elasticity?
Unitary elasticity occurs when the price elasticity of demand equals 1, indicating that the percentage change in quantity demanded is equal to the percentage change in price (Krugman, Principles of Economics).
- 06
What is the relationship between total revenue and price elasticity of demand?
When demand is elastic, a decrease in price increases total revenue; when demand is inelastic, a decrease in price decreases total revenue (Wells, Principles of Economics).
- 07
How does the availability of substitutes affect elasticity of demand?
The availability of substitutes increases the price elasticity of demand; more substitutes mean consumers can easily switch if prices rise (Mankiw, Principles of Economics).
- 08
What is cross-price elasticity of demand?
Cross-price elasticity of demand measures the responsiveness of the quantity demanded for one good when the price of another good changes, calculated as the percentage change in quantity demanded of one good divided by the percentage change in price of the other good (Krugman, Principles of Economics).
- 09
What does a negative cross-price elasticity indicate?
A negative cross-price elasticity indicates that the two goods are complements; as the price of one good rises, the quantity demanded of the other good falls (Wells, Principles of Economics).
- 10
What is income elasticity of demand?
Income elasticity of demand measures how the quantity demanded of a good responds to changes in consumer income, calculated as the percentage change in quantity demanded divided by the percentage change in income (Mankiw, Principles of Economics).
- 11
What is the significance of a positive income elasticity?
A positive income elasticity indicates that the good is a normal good; demand increases as consumer income rises (Krugman, Principles of Economics).
- 12
What does it mean if the income elasticity of demand is less than 1?
If the income elasticity of demand is less than 1, the good is considered a necessity, as demand increases less than proportionately to income increases (Wells, Principles of Economics).
- 13
How is the price elasticity of supply defined?
Price elasticity of supply measures how much the quantity supplied of a good responds to a change in its price, calculated as the percentage change in quantity supplied divided by the percentage change in price (Mankiw, Principles of Economics).
- 14
What factors influence the price elasticity of supply?
Factors that influence the price elasticity of supply include the time period for production adjustments, the availability of raw materials, and the flexibility of the production process (Krugman, Principles of Economics).
- 15
What is the difference between elastic and inelastic supply?
Elastic supply means that quantity supplied changes significantly with price changes, while inelastic supply means that quantity supplied changes little with price changes (Wells, Principles of Economics).
- 16
What does it mean if the price elasticity of supply is greater than 1?
If the price elasticity of supply is greater than 1, it indicates that supply is elastic, meaning producers are highly responsive to price changes (Mankiw, Principles of Economics).
- 17
What is unitary elasticity of supply?
Unitary elasticity of supply occurs when the price elasticity of supply equals 1, indicating that the percentage change in quantity supplied is equal to the percentage change in price (Krugman, Principles of Economics).
- 18
How does time affect the price elasticity of supply?
In the short run, supply is often more inelastic due to fixed factors of production; in the long run, supply becomes more elastic as producers can adjust their resources (Wells, Principles of Economics).
- 19
What is the relationship between price elasticity of demand and total expenditure?
When demand is elastic, total expenditure increases when prices decrease; when demand is inelastic, total expenditure decreases when prices decrease (Mankiw, Principles of Economics).
- 20
How does the concept of elasticity apply to taxation?
Elasticity affects the burden of taxation; the more inelastic the demand or supply, the greater the burden on consumers or producers, respectively (Krugman, Principles of Economics).
- 21
What is the effect of a price ceiling on elastic goods?
A price ceiling on elastic goods can lead to significant shortages, as the quantity demanded exceeds the quantity supplied at the controlled price (Wells, Principles of Economics).
- 22
What happens to demand for luxury goods when income rises?
Demand for luxury goods typically increases more than proportionately when income rises, indicating positive income elasticity greater than 1 (Mankiw, Principles of Economics).
- 23
What is the impact of advertising on elasticity of demand?
Advertising can decrease the price elasticity of demand by increasing brand loyalty, making consumers less sensitive to price changes (Krugman, Principles of Economics).
- 24
How does the definition of a market affect elasticity?
The broader the definition of a market, the more inelastic the demand tends to be, as consumers have fewer substitutes available (Wells, Principles of Economics).
- 25
What is the implication of perfectly inelastic demand?
Perfectly inelastic demand means that quantity demanded does not change regardless of price changes, represented by a vertical demand curve (Mankiw, Principles of Economics).
- 26
What is the implication of perfectly elastic supply?
Perfectly elastic supply means that quantity supplied can change infinitely with any price change, represented by a horizontal supply curve (Krugman, Principles of Economics).
- 27
How do necessities and luxuries differ in terms of elasticity?
Necessities tend to have inelastic demand, while luxuries tend to have elastic demand, reflecting consumer sensitivity to price changes (Wells, Principles of Economics).
- 28
What is the effect of a price floor on inelastic goods?
A price floor on inelastic goods can lead to surpluses, as the quantity supplied exceeds the quantity demanded at the minimum price (Mankiw, Principles of Economics).
- 29
How does consumer behavior affect elasticity of demand?
Consumer behavior, including preferences and income levels, directly affects the elasticity of demand for various goods (Krugman, Principles of Economics).
- 30
What is the significance of elasticity in economic policy?
Understanding elasticity helps policymakers predict the effects of taxation, subsidies, and price controls on markets (Wells, Principles of Economics).
- 31
What role does time play in determining elasticity of supply?
Time allows producers to adjust their production processes and resources, making supply more elastic in the long run compared to the short run (Mankiw, Principles of Economics).
- 32
How can elasticity of demand be used to forecast revenue changes?
By understanding the elasticity of demand, businesses can predict how changes in price will impact total revenue and adjust pricing strategies accordingly (Krugman, Principles of Economics).
- 33
What is the impact of a change in consumer preferences on elasticity?
A change in consumer preferences can shift demand curves and affect elasticity, potentially making demand more elastic if substitutes become more desirable (Wells, Principles of Economics).