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Question
Microeconomics
Posted 5 months ago

Which of the following best describes the sequences of events that lead to a price increase and quantity decrease when supply decreases?

Choose 1 answer:
(A) When supply decreases, there is a shortage because QS>QDQ_{S}>Q_{D} at the old price. Price will adjust upward until the market clears at a new lower quantity.
(B) When supply decreases, there is a surplus because QS>QDQ_{S}>Q_{D} at the old price. Price will adjust upward until the market clears at a new lower quantity.
(c) When supply decreases, there is a shortage because QS<QDQ_{S}<Q_{D} at the old price. Price will adjust upward until the market clears at a new lower quantity.

D When supply decreases, there is a surplus because QS<QDQ_{S}<Q_{D} at the old price. Price will adjust upward until the market clears at a new lower quantity.
(E) When supply decreases, the price increases automatically to make QS=QDQ_{S}=Q_{D}
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Answer from Sia
Posted 5 months ago
Solution
a
When supply decreases, the quantity supplied (QSQ_S) becomes less than the quantity demanded (QDQ_D) at the old price, creating a shortage
b
The shortage causes upward pressure on the price, leading to an increase in price
c
As the price increases, the quantity demanded decreases, and the market moves towards a new equilibrium with a higher price and lower quantity
Answer
(C) When supply decreases, there is a shortage because QS<QDQ_{S}<Q_{D} at the old price. Price will adjust upward until the market clears at a new lower quantity.
Key Concept
Supply Decrease and Market Adjustment
Explanation
When supply decreases, the initial effect is a shortage because the quantity supplied is less than the quantity demanded at the old price. This shortage causes the price to rise, which in turn decreases the quantity demanded until a new equilibrium is reached with a higher price and lower quantity.

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