A decrease in the price of a good causes more demand for that good.

An increase in market price shifts the supply curve to the right.

A decrease in the preference of consumers for a good will result in lower demand for that good. This indicates a positive relationship between consumer preferences and demand for a good.

The higher the price of a substitute good, the higher the demand for the good in question.

The tendency in most markets is for price to deviate away from equilibrium, and for quantity to remain in equilibrium most of the time.

A price ceiling is an imposed price above equilibrium price.

When supply and demand both increase, equilibrium price will always increase.

An increase in supply, accompanied by an increase in demand, always leads to an increase in equilibrium quantity.

Market supply is the sum of the quantities supplied by all the firms in the market at each and every price.

Sometimes, an increase in income causes demand for a good to fall.