If the price of running shoes is above the equilibrium price, there will be an excess supply of running shoes.

Excess demand for a good will put downward pressure on the price of the good.

A market can only be in equilibrium if there is no tendency for things to change.

If the price of television sets is lower than the equilibrium price, there will be an excess demand for television sets.

An increase in the price of potatoes will lead to an increase in the quantity of potatoes supplied.