When there is excess supply or excess demand is called "market imbalance"
always customers want to buy cheaper products and traders sell more expensive products but you have to have a POINT OF EQUILIBRIUM, this is when you adjust the market so that the price of the product is fair and benefits everyone.
But when there is a lot of product at a very low price (excess supply) traders lose or when there is little product the price is very expensive (excess demand) damaging the customer
i hope it help you
