Problem Recognition
The buying process starts when the buyer recognizes a problem or need triggered by internal or
external stimuli. With an internal stimulus, one of the person’s normal needs—hunger, thirst, sex—
rises to a threshold level and becomes a drive. A need can also be aroused by an external stimulus.
A person may admire a friend’s new car or see a television ad for a Hawaiian vacation, which
inspires thoughts about the possibility of making a purchase