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BEO2264 Microeconomic Analysis: Advent of Mobile Shopping Apps

Questions:

1.

(a) Farmer Fitzgerald was heard saying “My farm is profitable, but I can’t afford to stay in business any longer. I am going to sell the farm and teach at the local TAFE College.’ In what sense is farmer Fitzgerald using the word profitable here? Why do you think his sentiment would be unconvincing if he is referring to economic profits?

(b) Thomas Malthus reasoned that because the amount of land is fixed, as population grows and more and more labour is applied to land, the productivity of labour in food production would decline, leading to widespread famine. Malthus’s prediction failed to materialise as advances in technology greatly increased labour productivity in food production. Do such technological advances contradict the law of diminishing marginal returns?

2.

The advent of mobile shopping apps has led to an enormous growth in online shopping, particularly for electronic goods. Explain what effect is the introduction of shopping apps having on:

(a) Competition in the retail market for electronics. The consumer surplus of purchasers of electronics.
(b) The profitability of the traditional brick-and-mortar retailers of electronics.

3.

The wool industry in Hypothetica is highly competitive with the many woolgrowers seeing themselves as being price takers in an industry with no significant barriers to entry. In order to improve the incomes of woolgrowers, the government is considering providing funds for the wool industry to improve the marketing of its product and thus to increase the demand for wool.

(a) Using diagrams and assuming a constant cost industry, explain the impact of this policy on a typical farm (i.e. woolgrower) and on the wool market as a whole in the short run.

(b) Using diagrams, explain whether a typical woolgrower be better off in the long run if this policy is implemented?

4.

(a) Suppose the lawn-mowing industry approximates a perfectly competitive industry. Suppose also that a single firm buys all the assets of the lawn-mowing firms and establishes a monopoly. Contrast these two market structures with respect to price, output, and allocation of resources. Would you expect the monopoly to survive? Explain.

(b) The Best Computer Company just developed a new computer chip, on which it immediately acquires a patent, and becomes monopoly producer/seller. Show and explain what happens to consumer surplus, producer surplus and the deadweight loss (DWL) if the firm goes from a single price monopoly to perfect price discrimination.

Answers:

1

  1. a) It is imperative to understand that the firm might be profitable in the sense of income statement prepared for the business but it is possible that the cash flow statement associated with the business highlights a severe cash crunch or the fact that he might be losing money which might have prompted his decision to quit farming and teach. Further, while computation of profits non-cash items are considered which the cash flow statement does not consider and hence presents a more accurate picture of financial performance (Arnold, 2015)


  2. b) The given increase in food production is not in contradiction with the law of diminishing returns. It implies that when more quantity of a given factor is applied by keeping the other factors constant, the increase in production would decline. Thus, Malthus opined with regards to lower labour productivity under the assumption that technology would remain the same. The higher production of food has been achieved owing to technology revolution and not owing to labour productivity. In the long term, keeping other factors constant, technology would also deliver diminishing returns (Mankiw, 2014).

2

  1. a) With the advent of the online shopping apps, there has been an increase in the retail market for electronics. This is because there is an increase in the options available for the customers in order to making purchase. Hence, based on their specific preferences, the customer can make a choice. Owing to higher competition, it is evident that price would be adversely impacted to some extent which implies that the consumer surplus would be on the rise especially the customers buying electronics from online shopping apps which typically offer lower prices (Krugman and Wells, 2014).

  2. b) While, it would not be true that all the consumers would shift to the online shopping experience. There are some who would stay loyal to the brick and mortar retailers. However, there is no denying that competition has increased which would adversely impact selling price to some extent. In this regards, it would be appropriate to conclude that the profitability of the traditional retailers would be on a decline. The higher competition would also be witnessed in the traditional retailers who would experience decreasing sales volume and hence may offer attractive discounts to enhance the volume sales. This would surely bring the profit margins under pressure (Nicholson and Snyder, 2015).

3.

  1. a) Considering that the wool growers operate in a perfectly competitive market, hence in the short run the government policy would increase the wool demand while the supply would remain same. This would indicate a higher equilibrium price for the wool industry. Further, all the growers would also now sell at the same price and hence the profits earning by these players would increase since production in the short run cannot be increased. This is captured below (Mankiw, 2014).

The demand curve has shifted from D1 to D2 while supply remains constant. As a result, the price increases from P1 to P2. Consequently, the profits earned by the individual firm would also increase as is apparent (Nicholson and Snyder, 2015).

  1. b) In the long run, attracted by the higher profitability more suppliers would come and supply would be increased to a level that the earlier equilibrium price would be restored and hence the benefit of the government policy for an individual wool grower is limited to only the short term. In the long term, the individual wool grower is not benefitted as indicated in the following graph (Arnold, 2015).

Hence, in the short run, demand was increased from D0 to D1, thus leading to higher price as equilibrium. However, owing to entry of new suppliers in the long run, the supply would increase and the equilibrium price would be again back to the previous level (Krugman and Wells, 2014).

4.

  1. a) The comparison of the two market structures is as shown below (Nicholson and Snyder, 2015).
  • Price – It would be significantly higher in monopoly as compared to perfect competition as the motive in monopoly is to maximise profit.
  • Output – In monopoly, the output would be lower since artificial scarcity is created to keep the price lower. Output in perfect competition in higher.
  • Allocation of resources – Inefficient allocation of resources in monopoly since at equilibrium the average cost would not be at the lowest point. In perfectly competition, allocation of resources is highly efficient.

The given monopoly would not survive since the entry barriers are not high and thereby new lawn moving firms would be established (Mankiw, 2014).

  1. b) The shift from perfectly competitive market to monopoly owing to the chip is indicated in the diagram below (Arnold, 2015).

The relevant parameters under a monopoly are indicated below.

Owing to perfect price discrimination, there would be an increase in the producer surplus since the company would be able to extract the entire consumer surplus and in the process increase production to Qc. The relevant parameters are summarised below in perfect price discrimination (Krugman and Wells, 2014).

References

Arnold, A.R. (2015) Microeconomics. 9th ed. Sydney: Cengage Learning.

Krugman, P. & Wells, R. (2014) Microeconomics 2nd ed. London: Worth Publishers.

Mankiw, G. (2014) Microeconomics. 6th ed. London: Worth Publishers.

Nicholson, W. and Snyder, C. (2015) Fundamentals of Microeconomics.11th ed. New York: Cengage Learning.

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