📚 Learning Guide
Shifts in Demand Curve
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A sudden increase in consumer income leads to a shift in the demand curve for luxury cars. Which of the following best explains this change?

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Choose the Best Answer

A

People are now willing to buy more luxury cars at every price level.

B

The price of luxury cars has decreased, making them more affordable.

C

Consumers have less interest in luxury brands, causing a decrease in demand.

D

The availability of cheaper alternatives has increased.

Understanding the Answer

Let's break down why this is correct

Answer

When people suddenly have more money, they can afford goods that were once too expensive for them. Luxury cars are a type of normal good that people buy more of when their income rises. The extra income makes the cars more attractive, so buyers increase their quantity demanded at each price. As a result, the entire demand curve moves to the right, showing a higher quantity demanded at every price level. For example, if a family’s income jumps from $50,000 to $70,000, they might now consider buying a $40,000 car they previously avoided, shifting the demand curve for luxury cars outward.

Detailed Explanation

When people earn more, they have extra money to spend. Other options are incorrect because A lower price would only make people buy more cars along the existing curve, not shift the curve; Higher income usually makes people want more luxury items, not less.

Key Concepts

Shifts in Demand Curve
Consumer Income Effects
Luxury Goods
Topic

Shifts in Demand Curve

Difficulty

medium level question

Cognitive Level

understand

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