Heidi comes from an upper-middle-class family, and after high school she went through a period of exploration. She spent some time traveling around Asia, worked at Disneyland for a few summers, and then waited tables in a ski town while learning to snowboard. Now she is attending college and has made a clear commitment to go into business. According to Marcia, Heidi's current identity status would be described as

Identity Achievement

Explanation:

changes in factors like average income and preferences can cause an entire demand curve to shift right or left. this causes a higher or lower quantity to be demanded at a given price. demand curves relate the prices and quantities demanded assuming no other factors change. it is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford. i hope this .