Demand Flashcards
What is demand
The quantity of goods or services that will be bought over a period of time at any given price
Why would demand for a good change
It will rise or fall if there are any changes in the conditions of demand such as incomes, price of other goods, tastes and the size of the population
How is a change in price shown in the demand curve
Shown by a movement along the demand curve
Why does a shift in the demand curve appear
A change in any other variable affecting demand, such as income is shown by a shift in the demand curve
Where can a market exist
Wherever there are buyers and sellers of a particular good. Buyers demand goods from the market whilst sellers supply goods to the market
What’s demand
Demand is the quantity of goods or services that will be bought at any given price over a period of time
What does a demand curve show
Shows the quantity that is demanded at any given price - when price changes there is said to be movement along the curve
It’s downward sloping from left to right
What’s extension of demand
When the quantity demanded rises
What’s contraction of demand
When the quantity demanded falls
What’s effective demand
The demand curve shows effective demand - how much would be bought at any price and not how much would like to buy if they had unlimited resources
What’s the link between demand and price
In almost all cases , rises in price lead to falls in quantity demanded
Always an inverse relationship between price and quantity demanded
What are conditions of demand
Other factors apart from price that can cause demand for a product to change - changes in these conditions cause a shift in the demand curve either to the left or to the right
What is the effect of income on demand
Income is a condition of demand
Demand for a normal good rises when income rises
If income increase the demand curve tends to move to the right as at any given price - more will be demanded at the new higher level of income
What change would occur from a change in quantity demanded
A change in quantity demanded would result from a change in price and would be shown by a movement along the curve
How is a demand curve drawn
As straight lines - for convenience
The shifts in demand curves are drawn as parallel shifts - done for convenience , unlikely a shift would cause a precisely parallel shift in its demand curve
Price always on vertical axis, quantity on horizontal