Chapter 3 - Where prices come from: the interaction of demand and supply Flashcards
Consumer Sovereignty
In a market system, consumers ultimately determine which goods and services will be produced.
When discussing demand
we are considering, not what a consumer wants to buy, but what the consumer is both WILLING AND ABLE to buy.
Demand schedules
A table showing the relationship between the price of a product and the quantity of product demanded.
Quantity demanded
The amount of good or service that a consumer is willing and able to purchase at a given price.
Demand curve
A curve that shows the relationship between the price of a product and the quantity of the product demanded.
Market demand
The demand by all the consumers of a given good or service.
Law of demand
Holding everything else constant, when the price of a product falls, the quantity demanded will increase. And when the price of a product rises, the quantity demanded will decrease.
Ceteris Paribus (all else being equal)
The requirement that when analysing the relationship between two variables, such as price and quantity demanded - other variables must be held constant.
Substitution effect
The change in the quantity demanded of a good or service that results from a change in price, making the good or service more or less expensive relative to other goods or services that are substitutes.
Income effect
The change in the quantity demanded of a good or service that results from the effect of a change in price on consumer purchasing power.
The substitution & income effect
happen simultaneously when a price changes.
A shift in a demand curve
is an increase or decrease in demand.
A movement along a demand curve
is an increase or decrease in the quantity demanded.
Variables that influence market demand
- Income
- Prices of related goods.
- Tastes
- Population
- Expected future prices
Normal good
A good or service for which the demand increases as income rises and decreases as income falls. I.e. Kombucha