CAIE-Alevel-经济学-AS分类练习+解析 → 练习和解析 (选择题 – 易): Interaction of Demand and Supply

1.

Given the market demand equation Qd=310-20p and the supply equation Qs=10+10p where p denotes the price of the good, what is the price at which the market reaches equilibrium?

5

10

15

20

2.

Based on the table of market demand and individual supply of firms X, Y, and Z in the industry, what is the market price at equilibrium?

$40

$30

$20

$10

3.

How might a very wet and cold summer affect the prices of umbrellas and ice creams?

The price of umbrellas will decrease while the price of ice creams will also decrease.

The price of umbrellas will decrease while the price of ice creams will increase.

The price of umbrellas will increase while the price of ice creams will decrease.

The price of umbrellas will increase while the price of ice creams will also increase.

4.

What is the change in sales revenue received by the corn farmer when supply increases from S1 to S2 according to the given diagram of demand and supply for corn?

24 cents

60 cents

600 cents

700 cents

5.

When the free market for a good is in disequilibrium, which condition must hold true?

Consumers can purchase the entire quantity of the good they demand at the market price.

Producers can sell the entire quantity of the good they supply at the market price.

The market price of the good will remain unchanged.

The amount of the good demanded is not the same as the quantity supplied.

CAIE-Alevel-经济学-AS分类练习+解析

CAIE-Alevel-经济学-AS分类练习+解析

练习和解析 (选择题 – 易): Interaction of Demand and Supply

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