Demand Flashcards
Definition of demand
Demand is the amount of a product that consumers are willing and able to purchase at any given price.
basic law of demand
Demand is inversely proportional to change in price.
Demand curve
Check book
ceteris paribus
Everything remains the same
Movement / shift in the demand curve
Movement: when there’s a change in price and demand goes up or down the demand curve.
Shift: When there’s a change in something other than price, and the demand increases. Another line drawn.
Income / substitute effect
Income effect: Demand changes because income changes.
Substitute effect: When demand of a product changes because of a product that can replace it.
Complementary goods
goods that are purchased together because they are consumed together.
Inferior goods
goods for which demand will fall if income
rises or rise fi income falls.
Normal goods
goods for which demand will rise if income rises or fall if income falls.
Substitute goods
goods that can be bought as an alternative to others, but perform the same function.
Factors leading to a change in demand
○ Price
○ Prices of substitutions
○ Prices of complements
○ Changes in consumer incomes
○ Fashion, tastes and preference
○ Marketing, advertising and branding
○ Demographics: age, gender, geographical distribution.
○ External shocks: competition, government, economic climate, social
and environmental factors
○ Seasonality