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##### ECON204: Intermediate Microeconomic analysis Assignment #3: Explaining Tastes;Production & Costs...

**Description**

New solution updates

**Question**

Part I: Short-Answer Questions (4 marks each)

1.

The Kelowna Police Department must decide how to allocate 500 police officers between West

Kelowna and Central Kelowna. The following table provides the estimates of total arrests

corresponding to different numbers of police officers allocated in each region. If police can be

deployed only in groups of 100 officers, how should the police department allocate its officers

between the two regions? Explain your answer.

Number of Police Officers

0

100

200

300

400

500

West Kelowna

Total Arrests

0

40

80

120

160

200

Central Kelowna

Total Arrest

0

45

80

105

120

125

2.

A firm purchases capital and labour in competitive market at price of r = $6/machine-hour and w =

$4/labour-hour, respectively. With the firms current input mix, the marginal product of capital is

12kg/machine-hour and the marginal product of labour is 18kg/labour-hour. Is the firm minimizing

its costs? Explain your answer with the use of an appropriate diagram.

3.

If you are travelling though a remote small town, you may notice that vending machines are

uncommon. The local bowling alley has an attendant to sell chips and pop, as does the gas station.

In large urban centres, on the other hand, vending machines are much more common. Explain this

using the notion of relative input prices and isoquants.

Part II: Problems

1. (10 marks) Consider a population consisting of two types, cooperators and defectors. Each

individual interacts with a randomly chosen member of the population. When two cooperators

interact, each earns a payoff of 6. When two defectors interact, each gets a payoff of 4. When a

cooperator and a defector interact, the former gets a payoff of 0 whereas the latter gets a payoff of 8.

a) Summarize the situation described above in the game matrix where two individuals, X and Y

decide whether to cooperate or to defect. What is a Nash equilibrium (equilibria) for this game?

b) Let c be the population share of Cooperators. What will be the equilibrium population share of

each type? Illustrate your answers in a diagram with population share of cooperators on the

horizontal axis and expected payoffs on the vertical axis.

Suppose that goggles are available, at the cost of 1 per pair, which enables the wearer to identify each

persons type with certainty.

1

c) What will be the equilibrium population share of Cooperators in this case? Draw a new diagram

and explain your answers.

2. (5 marks) The manager of Green Chemical Co. has been informed that this years production target

Q for organic fertilizer (in millions of tonnes) is 20. The manager is asked to allocate the production

across the companys two plants. The average total cost and marginal cost curves for each plant are

described as follows

20

Plant A: ATC A

4, MC A 4

qA

q

5 qB

Plant B: ATC B

MC B B

qB

4

2

where ATC and MC are in dollars per million of tonne, and q A is the quantity produced (in millions of

tonnes) by Plant A and q B is the quantity produced (in millions of tonnes) by Plant B.

a) Graph the marginal cost curve for each plant.

b) How should the manager allocate the production between the two plants so as to minimize total

cost? What is the resulting total cost?

3. Adapted from #8 in Problems, FPA (5th ed. p. 330, 4th ed. p. 302).

(5 marks) A firm has a production function Q = F(K,L) with constant returns to scale, where K is

units of capital and L is units of labour. Input prices are r = $2 per unit of K and w = $1 per unit of L.

When it produces 5 units of output, it uses 2 units of capital and 3 units of labour. When its long-run

total cost is equal to $70, how much capital and laobur it will employ to product how many units of

output? What is the long-run average cost?

Solution ID:351199 | This paper was updated on 26-Nov-2015

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