Difficulty: Easy

Average Score: 88%

Which statement describes an aggregate demand curve?

Rationale

It slopes downward and to the right.

The aggregate demand curve illustrates the relationship between the overall price level and the quantity of goods and services demanded in an economy. This downward slope indicates that as the price level decreases, the quantity of real GDP demanded increases, reflecting the inverse relationship between price levels and demand.

A (It is horizontal at the current level of wages) YOUR ANSWER

A horizontal aggregate demand curve would suggest that changes in price levels do not affect the overall quantity of goods and services demanded, which contradicts the fundamental behavior of aggregate demand. Aggregate demand is influenced by price changes, thus it cannot be horizontal at any wage level.

B (It is equal to full-employment GDP) YOUR ANSWER

Full-employment GDP refers to the level of output when all resources are utilized efficiently, but the aggregate demand curve does not represent a fixed output level. Instead, it shows varying quantities of output demanded at different price levels, which can be above or below full-employment GDP depending on economic conditions.

C (It slopes downward and to the right) CORRECT

The aggregate demand curve indeed slopes downward from left to right, indicating that a lower price level results in a higher quantity of goods and services demanded. This is due to various effects, including the wealth effect, interest rate effect, and exchange rate effect, all contributing to increased demand as prices fall.

D (It shows a positive relationship between price level and real GDP) YOUR ANSWER

A positive relationship between price level and real GDP would imply that as prices rise, demand increases, which is not the case for the aggregate demand curve. Instead, there is a negative relationship, where higher price levels lead to lower quantities of real GDP demanded, due to decreased purchasing power and other factors.

Conclusion

The aggregate demand curve is a crucial concept in economics, representing the inverse relationship between the overall price level and the quantity of output demanded. It slopes downward to the right, indicating that as prices decrease, demand increases. Understanding this relationship helps analyze economic fluctuations and informs policy decisions to stabilize the economy.

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