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Chapter 3: Problem 3

What is the difference between a change in demand and a change in quantity demanded?

Short Answer

Expert verified
A change in demand refers to a shift in the whole demand curve due to factors other than price, indicating a difference in the quantity that consumers are willing to purchase at the same price. A change in quantity demanded refers to a movement along the same demand curve due to changes in price, indicating a difference in the quantity that consumers are willing to purchase at different prices.

Step by step solution

01

Understanding a Change in Demand

A change in demand refers to the shift of the demand curve in an economy. This shift can either be towards the right (an increase in demand) or towards the left (a decrease in demand). The shift implies that at the same price, consumers are willing to purchase a different quantity of goods or services. The reasons for a shift in the demand can include changes in the consumers' income, tastes or preferences, prices of related goods or services, expectations for future prices, and population or demographic changes.
02

Understanding a Change in Quantity Demanded

A change in quantity demanded, on the other hand, refers to movement along the same demand curve with changes in price. In other words, a rise in the price of a product results in its decreased quantity demanded and vice versa, when we hold everything else constant. The change in quantity demanded is a reaction to the change in price only.
03

Comparing the Two Concepts

In summary, the difference between a change in demand and a change in quantity demanded is primarily in the fact that the former represents a shift in the demand curve, affected by various factors other than price, while the latter represents a movement along the same demand curve, affected by changes in price only.

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Most popular questions from this chapter

If, over time, the demand curve for a product shifts to the right more than the supply curve does, what will happen to the equilibrium price? What will happen to the equilibrium price if the supply curve shifts to the right more than the demand curve? For each case, draw a demand and supply graph to illustrate your answer.

Draw a demand and supply graph to show the effect on the equilibrium price in a market in the following situations. a. The demand curve shifts to the right. b. The supply curve shifts to the left.

For each of the following pairs of products, briefly explain which are complements, which are substitutes, and which are unrelated. a. New cars and used cars b. Houses and washing machines c. UGG boots and Pepsi's LIFEWTR d. Pepsi's LIFEWTR and Diet Coke

[Related to the Don't Let This Happen to You on page 96\(]\) A student writes the following: "Increased production leads to a lower price, which in turn increases demand." Do you agree with his reasoning? Briefly explain.

What do economists mean by market equilibrium?
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