If the quantity demanded of a new mountain bike is 8,000 and the quantity supplied is 6,000, then there is a shortage of 2,000 bikes .
In economics, the relationship between supply and demand in which there is greater demand than supply of a product is called shortage.
In this case, there is a demand that exceeds in 2,000 the number of bicycles produced, therefore there is a shortage that corresponds to 2,000 dissatisfied consumers.