Change in demand versus change in quantity demanded
Channel: Werner Lost
Date: 2012-11-27

It is important to distinguish between a shift of the demand curve and a movement along the demand curve. 
A shift of the demand curve occurs whenever any of the nnon-price factors change.  A new demand relation is formed and is referred ot as a change in demand. 
A movement along the dmeand curve takes place when the price of the good or service changes.  This is referred to as change in quantity demanded.