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國立彰化師範大學九十四學年度碩士班招生考試試題
系所： 企業管理學系
科目：經 濟 學
☆☆請在答案紙上作答☆☆
共 5 頁，第 1 頁
一、選擇題（每題 2%，共 50%）
1.
The level of competition in a given market will tend to increase if:
a. the number of potential entrants decreases.
b. minimum efficient scale of firms increase.
c. the number of substitutes increases.
d. significant barriers to exit are imposed.
2.
In a perfectly competitive market:
a. each seller can affect the market price by changing output.
b. sellers and buyers have perfect information.
c. entry and exit are difficult.
d. sellers produce similar, but not identical products.
3.
The demand curve for a unique product without substitutes is:
a. vertical.
b. upward sloping.
c. downward sloping.
d. horizontal.
4.
The demand curve faced by a single firm in a competitive market is:
a. vertical.
b. upward sloping.
c. downward sloping.
d. horizontal.
5.
A firm will earn zero economic profits when price:
a. exceeds minimum average total cost.
b. equals average total cost.
c. equals average variable cost.
d. equals marginal cost.
6.
In the short run, a perfectly competitive firm will shut down and produce nothing if:
a. the market price falls below the minimum average total cost.
b. excess profits equal zero.
c. total cost exceeds total revenue.
d. total variable cost exceeds total revenue.
7.
In the long run, firms will exit a perfectly competitive industry if:
a. excess profits equal zero.
b. excess profits exceed zero.
c. excess profits are less than zero.
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國立彰化師範大學九十四學年度碩士班招生考試試題
系所： 企業管理學系
科目：經 濟 學
☆☆請在答案紙上作答☆☆
共 5 頁，第 2 頁
d. total profits is less than zero.
8.
A monopolist maximizes profits by producing a level of output where:
a. P = MC.
b. P = AC.
c. P > MC.
d. P < MC.
9.
In the short run, a monopolist:
a. will never shut down.
b. will shut down if price equals average total cost.
c. will shut down if price is less than average total cost.
d. will shut down if price is less than average variable cost.
10. In general, a perfectly competitive industry with the same costs of production as a monopoly will
sell:
a. more output at lower prices than a monopoly.
b. less output at lower prices than a monopoly.
c. more output at higher prices than a monopoly.
d. less output at higher prices than a monopoly.
11. At the profit maximizing level of output for a monopolist:
a. P = MR and AC = MC.
b. P = AR and AR = AC.
c. P = MC and MR > MC.
d. P > MC and MR = MC.
12. Derived demand is:
a. the demand for consumption products.
b. the demand for inputs used in production
c. the demand for products other than raw materials.
d. the first derivative of the demand function.
13. The demand function for a product states the relation between the aggregate quantity demanded
and:
a. the market price, holding all the other factors that influence demand constant.
b. all factors that influence demand.
c. the aggregate quantity supplied.
d. consumer utility.
14. The demand curve for automobiles will shift to the left if:
a. the price of automobiles increases.
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國立彰化師範大學九十四學年度碩士班招生考試試題
系所： 企業管理學系
科目：經 濟 學
☆☆請在答案紙上作答☆☆
共 5 頁，第 3 頁
b. interest rates decrease.
c. advertising expenditures decrease.
d. the price of steel decreases.
15. The equilibrium market price of a good is:
a. the price where the quantity demanded equals the quantity supplied.
b. the price that buyers are willing and able to pay.
c. the price that buyers are willing but unable to pay.
d. the price that maximizes profit for sellers.
16. If demand and supply both decrease:
a. its equilibrium price will increase wile the quantity produced and sold could increase, decrease,
or remain constant.
b. its equilibrium price will decrease while the quantity produced and sold could increase,
decrease, or remain constant.
c. the quantity produced and sold will increase while its equilibrium price could increase,
decrease, or remain constant.
d. the quantity produced and sold will decrease while its equilibrium market price could increase,
decrease, or remain constant.
17. If demand increase while supply decreases for a particular good:
a. its equilibrium price will decrease while the quantity of the good produced and sold could
increase, decrease, or remain constant.
b. its equilibrium price will increase while the quantity of the good produced and sold could
increase, decrease, or remain constant.
c. the quantity of the good produced and sold will decrease while its equilibrium price could
increase, decrease, or remain constant.
d. the quantity of the good produced and sold will increase while its equilibrium price could
increase, decrease, or remain constant.
18. Costs which are invariant across all alternatives are called:
a. explicit costs
b. incremental costs.
c. implicit costs.
d. sunk costs.
19. When a firm, which produces a single product, increase output of that product in the short run, the
average total cost increases. As a result of this the:
a. total cost rises a decreasing rate.
b. marginal cost is above the average total cost and marginal cost rises.
c. marginal cost is below average total cost and marginal cost rises.
d. slope of the total cost curve decreases.
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國立彰化師範大學九十四學年度碩士班招生考試試題
系所： 企業管理學系
科目：經 濟 學
☆☆請在答案紙上作答☆☆
共 5 頁，第 4 頁
20. In economics, the short run is usually defined to be:
a. one year.
b. a period in which some inputs are fixed.
c. a period of sufficient length so that all inputs are variable.
d. the period of time during which technology is fixed.
21. In the long run, fixed costs are:
a. zero.
b. lower than in the short run.
c. higher than in the short run.
d. equal to the costs of constructing a new plant.
22. When a firm experiences economies of scale, which of the following is true?
a. The firm’s cost elasticity is less than one and its output elasticity is greater than one.
b. The firm’s cost elasticity is less than one and its output elasticity is less than one.
c. The firm’s cost elasticity is greater than one and its output elasticity is greater than one.
d. The firm’s cost elasticity is greater than one and its output elasticity is less than one.
23. A firm produces and sells a product with price, P=$16.00, average variable cost, AVC=$12.00,
and total fixed cost, TFC=$60,000. Use breakeven analysis to find the level of output, Q, that
will allow the firm to break even. That level of output is:
a. $ 7,500
b. $10,000
c. $15,000
d. $17,500
24. The learning curve which shows the relationship between cost per unit and cumulative total output
is usually:
a. downward sloping.
b. horizontal.
c. vertical.
d. upward sloping.
25. The cost savings associated with the joint production of two or more outputs is called:
a. economies of scale.
b. returns to scale.
c. economies of plant size.
d. economies of scope.
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國立彰化師範大學九十四學年度碩士班招生考試試題
系所： 企業管理學系
科目：經 濟 學
☆☆請在答案紙上作答☆☆
共 5 頁，第 5 頁
二、問答題
1. In the Keynesian model, the condition for an equilibrium income is assumed to be Y  C  I  G ,
where the consumption function can be represented as C  a  bY  bT and I and G are given
autonomous expenditures, as is the level of net tax payments of T. Derive the balanced-budget
multiplier (25 %).
2. Suppose that the utility function for a consumer is U  q1q2 . Derive the compensated demand
functions for q1 and q 2 with U  U 0 (20 %) and show the minimum expenditure to obtain the
utility level U 0 (5%).
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