Price elasticity measures how much consumers are willing to pay for goods or services.
FIRMS are the SUPPLIERS
HOUSEHOLDS are the DEMANDERS
The demand curve shows the relationship between price and quantity demanded by households (demanders). It is downward sloping because as prices fall, people buy more of that good/service.
Equilibrium occurs when there is no excess supply or demand - this means that the market has reached its equilibrium point where the quantity demanded equals the quantity supplied.
The interaction of supply and demand determines the price and quantity of each good and service
DEMAND
The quantity of a good or service that POTENTIAL BUYERS are willing and able to purchase at a given price