exam 3 Flashcards
Price Elasticity of Demand (E_D)
a measure of the flexibility of quantity demanded to a change in the price (consumer price sensitivity).
When consumers are very price sensitive
we say their response to a price change is ELASTIC.
When consumers are not very price sensitive
we say their response to a price change is INELASTIC.
Factors that Determine Price Elasticity of Demand
The availability of substitutes, Time Horizon, Nature of the Product, Share of Budget, Addiction
The availability of substitutes
The availability of substitutes: As the # of available substitutes rises, demand becomes more elastic (and vice versa).
- For goods with many substitutes, switching brands when prices change is EASY, so demand is elastic
- For goods with fewer substitutes, consumers find it HARD to adjust quantity demanded much when prices change… so demand is inelastic
Time Horizon
Time Horizon: The more time buyers have to adjust to a price change, the more elastic the demand for a good becomes.
- Immediately following a price increase, consumers may not be able to alter their consumption patterns (making demand inelastic)
- Over time, however, consumers can adjust their behavior by finding substitutes (making demand elastic)
Nature of the Product
Nature of the Product: The more the good is a necessity (rather than a luxury), the more inelastic demand will be.
- For necessities, consumers do not change quantity demanded much when the price changes (making demand inelastic)
- For luxuries, consumers will alter their behavior when the price rises (making demand elastic)
Share of Budget
Share of Budget: The greater the share of a consumer’s budget that is devoted to a good, the more elastic demand will be.
- Consumers are less concerned about price changes when the good feels cheap (making demand inelastic)
- Consumers become much more concerned about price changes when the good feels expensive (making demand elastic)
Addiction
Addiction: If a product is habit-forming, the rise in its price would not induce much change in demand. Thus, the demand for habit-forming goods is less elastic.
- if a product is habit-forming the rise in its price would not induce much change demand (making demand inelastic)
- if a product is not habit-forming the rise in its price would induce much change demand (making demand elastic)
The elasticity of Demand and Slope of the Demand Curve
○ Slope and elasticity are not the same things (two different numbers)
○ BUT Comparing relative slopes of two demand curves allows you to compare elasticity between them.
perfectly inelastic demand
○ the demand is always going to stay the same, no matter what you charge for the good.
perfectly elastic demand
basically, any demand that exists only exists at one price. And then if you charge any other price, you’re going to not sell any of the products.
Price Discrimination
Definition: Charging different prices to different consumers for the same product.
Three Necessary Conditions for Price Discrimination:
- Consumers in the market must have heterogeneous (different) preferences for their products.
- The demand curve for the good/service cannot be perfectly elastic.
- The firm must prevent resale and arbitrage.
Three Types of Price Discrimination
1.First-Degree (Perfect) Price Discrimination, 2.Second-Degree (Indirect) Price Discrimination, 3.Third-Degree (Segmenting) Price Discrimination