1.2.2 Demand Flashcards
Consumer goods and services
consumer goods and services help to satisfy our needs and wants directly
consumer durables: products that satisfy a steady floor of satisfaction/utility over their working life e.g. washing machine or using a smart phone.
Consumer nondurables: products that are used up in the act of consumption e.g. drinking a coffee or turning on the heating
Demand
quantity of a good or service that consumers are willing and able to buy at a given price in a given period of time.
Demand curve
Shows the relationship between the price of an item and the quantity demanded over a period of time
Diminishing marginal utility
As consumption increases the satisfaction from each additional unit decreases
Effective demand
Demand is only effective when a consumers desire to buy a product is backed up by an ability to pay for it
Excess demand
The difference between the quantity supplied and the higher quantity demanded when price is set below an equilibrium price.
this will result in queueing and an upward pressure on price
Law of demand
there is an inverse relationship between price and demand.
As prices fall we see an expansion of demand.
If price rises that should be a contraction of demand.
Perverse demand curve
A demand curve which slopes upwards from left to right
An increase in price leads to an increase in demand.
This may happen when goods are strongly affected by price expectations.
Willingness to pay
The maximum price a consumer is prepared to pay to obtain a good