2.2 - Demand Flashcards
What is a market?
A set of arrangements that allows transactions to take place.
What is demand?
A consumers willingness and ability to purchase a product or a service at a given price.
What is Derived Demand?
Demand for a factor of production or good which derives not from the factor or good itself but from the goods it produces.
What is Joint Demand?
is when products are complements for one another such that they are demanded together
Eg
Petrol and cars
When petrol prices decreases the demand for cars will increase as they are cheaper to runis
What is Competitive Demand?
Eg luxury goods and substitutes
Demand for goods which are in competition with each other (substitutes)
What two effects are witnessed when the price of a good rises?
Income effect and Substitution effect
What is the Substitution effect?
An increase in the price of a good will encourage consumers to buy alternative goods. The substitution effect measures how much the higher price encourages consumers to use other goods, assuming the same level of income.
What is the Income effect?
How the price change effects consumer income. If price rises, it effectively cuts disposable income and there will be lower demand.
What is Composite Demand?
Demand for a good that has multiple uses.
What is an expansion?
When there is a fall in price there is a movement along the demand/supply curve resulting in an increase in demand/supply.
What is a contraction?
When there is an increase in price there is a movement along the demand/supply curve resulting in a decrease in demand/supply.
What are the factors that can shift demand?
Population Advertising Substitutes Income Fashion and trends Interest rates Complementary goods
What does demand have to be in economics?
Demand has to be effective. Consumers have to be willing and able for demand to exist.
What is the law of demand?
There is an inverse relationship between price and quantity demanded. As price increases, Qd decreases and vice versa.
What do we assume in the law of demand?
Ceteris Paribus, all other things being equal.