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a change in demand is a movement along the demand curve, and a change in quantity demanded is a shift in the demand curve. 3 people found this useful. Edit. Share to: 1  The Job Outlook and Salary Trends for a Cosmetologist Cosmetology is a field with many different opportunities for its professionals.
What is 'Demand'. Demand is an economic principle that describes a consumer's desire and willingness to pay a price for a specific good or service. Holding all other factors constant, an increase in the price of a good or service will decrease demand, and vice versa. Think of demand as your willingness to go out and buy a certain product. For example, market demand is the total of what everybody in the market wants.