Supply and Demand Flashcards
4 types of demand and what they mean:
Effective demand = the ability and willingness to buy a product.
Latent demand = when either the willingness or the ability to buy a product is missing (usually the latter).
Derived Demand = when something is not demanded for itself, but for what it can provide.
Joint Demand = When the demand for a product involves another.
Conditions that affect the level of demand (ie. shifts the demand curve)
- Real Income
- Prices of other goods.
- Taste and Preferences.
- Interest Rates.
- Utility.
- Population changes.
- Advertising and Marketing.
Conditions that affect the level of supply (ie. sifts the supply curve)
- Changes in production costs.
- Gov intervention through taxes and subsidies etc.
- Changes in production technology
- Changes in the price of substitutes of production.
Price elasticity of demand?
The proportionate responsiveness of the quantity demanded to a change in price.
NOTE: YOU Q BEFORE YOU P
PED = 0 means... PED = 0>-1 means.... PED = -1 means... PED < -1 means... PED = - infinity means.... PED > 0 means... PED < 0 means...
Perfectly Inelastic Inelastic Unit elastic Elastic perfectly elastic veblen good normal good
Cross Price Elasticity of Demand
The proportionate responsiveness of quantity demanded of a product to a price change in a different product.
XED > 0 means…
XED < 0 means…
XED = 0
XED between 0 and 1 (negative or positive)
XED = 1 (negative or positive)
XED greater than one (negative or positive)
Substitute Complement No relationship Weak relationship proportional relationship strong relationship
Income Elasticity of Demand
The proportionate responsiveness of the quantity demanded of a produce to a change in the real disposable income.
YED > 0 means... YED < 0 means... YED = 0 means ... YED between 0 and 1 YED = 1 means... YED > 1 means...
Normal good inferior good total necessity basic good basic good superior good
Price elasticity of supply
the Proportionate responsiveness of the quantity of supply to a change in price.
Factors affecting PED (7)
- Availability of substitutes/ complements
- Habit forming goods
- Time horizon (trends etc)
- % of income spent on good.
- Number of uses for the good.
- Brand loyalty.
- Form of Payment.