Final answer:
Factors that do not cause a shift in demand for a product include the change in the product's own price. Instead, changes like income, tastes and preferences, and prices of related goods cause shifts in demand.
Step-by-step explanation:
The question that was asked pertains to what will not cause a change in the demand for product A. A change in demand means that there will be a different quantity of the product demanded at every price, which is represented graphically by the shift of the entire demand curve. It's important to note that inelastic demand refers to a situation in which the percentage change in demand is smaller than the percentage change in price, but this does not directly answer the question being asked. Instead, we know that factors that shift demand curves include changes in income, tastes and preferences, the composition or size of the population, prices of related goods (complements and substitutes), and expectations about the future.
An example of a factor that would not cause a change in demand would be a change in price of the product itself, as this is related to movement along the demand curve rather than a shift of the curve. Therefore, a change in the price of the product itself will not cause a shift in demand; it would cause a movement along the existing demand curve, indicating a change in the quantity demanded.