Demand Supply and Price Flashcards
(28 cards)
Normal goods
Goods which people will demand more of if their real income increases (DVDs)
Inferior Goods
Goods which people demand less of if their real income increases
demand definition
Ability and willingness to but a good at a given price at a given time
derived demand
Demand for one good used in making something else
Composite demand
Some goods have multiple uses, demand change for that good can lead to supply changes for other goods
Complementary goods
Goods often used together so have joint demand
How will equal distribution of income affect luxury goods
Demand will decrease as there is fewer rich people who can afford luxury items
substitute goods
goods which are alternatives to each other so an increase in price for one leads to a rise in demand for the other
What causes movement along the demand curve
price changes
What can cause demand to shift
- Price increase leads to demand decrease
- Population increase lads to demand increase
- Income increase leads to demand increase
- Substitute and complement goods
- Increased Advertising leads to increase demand
- Speculation
- Seasonality
- Government legislation
Diminishing marginal utility
Satisfaction derived from consumption of an additional unit of the good will decrease as more of the good is consumed
Why does demand curve slope downwards
Inverse relationship between price and quantity demanded
Marginal utility
Satisfaction gained from the consumption of the next unit of the good
Supply definition
Ability and willingness to provide a good or service at a given price at a given time
What can cause supply to shift
- If cost of production increases supply decreases
- Competitive and composite supply
- Agricultural goods are particularly weather dependent
- New technology is more efficient which increases supply
- Government legislation
- ## Taxes and subsidies can affect supply
Why is supply upwards sloping
because as price increases firms are willing to supply more as they make more profit
Market Clearing Price
Where supply is equal to demand, the equilibrium the market is cleared
How to show excess demand on the graph
Put price below equilibrium and it is the triangle above price
How to show excess supply on the graph
Put price above the graph and it is the triangle below
price mechanism
forces of demand and supply interacting to influence price and then the quantity sold
signalling function
changes in price shows how demand and supply are so signals to consumers and producers how to act.
rationing function
high demand and low supply due to scarce resources can cause price to rise. Restricts the good to those with higher incomes who can afford to pay high price.
incentive function
higher prices act as an incentive to encourage firms to increase production and increase supply with incentive of more profits.
advantages of the price mechanism
- resources will be allocated efficiently
- no cost of regulation
- market caters to consumers preference
- prices are kept to minimum as resources are used efficiently