微观经济学(英文)试卷

内蒙古农业大学

2011/2012学年第一学期

微观经济学课程考试试卷（A）

Please print. If the answer is unrecognizable, it will be counted as wrong answer. You should answer in English or Chinese, numbers, or graphs.

Ⅰ. Concepts（3 points each, total 15 points）

1. Opportunity cost

2. Externality

3. Deadweight loss

4. Competitive market

5. Diminishing marginal product

. True or False Questions (2 points each，total 20 points) demand for orange decreases.

( f ) 2.The price elasticity of demand remains constant along a linear demand curve.

( t ) 3.When price ceiling is below equilibrium price in a competitive market, the price ceiling is binding, and there is shortage in the market.

( t ) 4.Total surplus is the values to buyers minus the cost to sellers.

( f ) 5. When taxed is levied on the good in a competitive market, the tax revenue got by the government equals the fall in producer and consumer surplus.

( f ) 6. If the world price of a good exceeds the domestic price, the country should import the good instead to export it.

( t ) 7.In the presence of a negative externality, Q optimum is therefore larger than the Q market .

( f ) 8.Price always equals to marginal revenue for all kinds of firms.

( t ) 9. Demand curve for a monopoly firm is the market demand curve.

( f ) 10.In the long run, monopolistic competitive firms produce at their lowest average total cost.

. Single Choice Questions (2 points each ，total 20 points)

( d ) 1. If the cross-price elasticity of demand for two goods is negative, these two good are?

A. Luxury goods.

B. Necessities.

C. Substitutes.

D. Complements.

( a ) 2. Although buyers and sellers share the burden of tax together, sellers share more

if the good is ________

A. Food .

B. Clothes.

C. Housing.

D. Entertainment good.

( c ) 3.Consumer surplus is the area＿＿＿＿

A.Above the supply curve and below the price.

B.Below the supply curve and below the price

C.Below the demand curve and above the price

D.Below the demand curve and below the price

( a ) 4.If we double the size of tax under the perfectly competitive market, so the deadweight loss _____________

A.Is four times as the original one.

B.Is twice as the original one.

C.Remain the same

D.May increase or decrease.

( b ) 5. Which of the following items is an example of public goods?

A.Fishes in the ocean.

B.National defense.

C.Apples on a household’s apple tree.

D.Hot dogs in a picnic.

( ) 6. If the production function has the attribute of diminishing marginal returns, the slope of the total cost curve which is associated with the production function

A.Increases when produced quantity increase

B.Decreases when produced quantity increase.

C.Remains the same.

D.May be any one mentioned above.

( d ) 7. If the marginal cost curve is below the average total cost curve,_________.

A.Average total cost increases.

B.Average fixed cost increases.

C.Average total cost achieves its minimum.

D.Average total cost decreases.

( b ) 8. If a competitive firm achieve its long-run equilibrium state,

A.Its average total cost achieves its minimum.