IB Economics Paper 1: evaluate the view that monopoly is always against the interest of consumers.

1 answer

• ▲0
  accepted ✓

  Part (a)

  A monopoly is a market structure characterized by a single seller, a unique product with no close substitutes, and significant barriers to entry. These barriers to entry are the fundamental reason why a monopolist can earn supernormal (or abnormal) profit in the long run.

  Abnormal profit is defined as total revenue exceeding total economic costs, where economic costs include both explicit costs and implicit opportunity costs. A firm maximizes profit by producing at the output level where marginal cost (MC) equals marginal revenue (MR).

  For a monopolist, the firm's demand curve is the market demand curve, which is downward sloping. This means that to sell more output, the monopolist must lower its price. As a result, the marginal revenue (MR) curve lies below the average revenue (AR), or demand, curve.

  This can be illustrated with a diagram. On a graph with price/cost/revenue on the y-axis and quantity on the x-axis, the monopolist faces a downward-sloping AR curve and a steeper, downward-sloping MR curve. The firm's marginal cost (MC) and average total cost (ATC) curves are typically U-shaped. The monopolist determines its profit-maximizing output, Qm, where the MC curve intersects the MR curve. To find the price, Pm, this quantity is traced up to the AR curve. The cost per unit, Cm, is found by tracing Qm up to the ATC curve.

  Abnormal profit is earned because at this output level, the price (Pm) is greater than the average total cost (Cm). The total abnormal profit is represented by the area of the rectangle (Pm - Cm) x Qm.

  In a perfectly competitive market, the existence of abnormal profits in the short run would attract new firms into the industry. This influx of new firms increases market supply, drives down the market price, and erodes abnormal profits until only normal profit is earned in the long run.

  However, a monopolist is protected from this process by high barriers to entry. These barriers prevent potential competitors from entering the market and competing away the abnormal profits. Examples of such barriers include:

  1. Economies of Scale: A natural monopoly exists when the largest firm can produce at a lower long-run average cost than smaller firms. This makes it impossible for new, smaller entrants to compete on price.
  2. Patents and Copyrights: Legal protections grant a firm the exclusive right to produce a product or use a process for a set period, creating a temporary legal monopoly.
  3. Control of Essential Resources: A firm that owns a key resource (e.g., De Beers' historical control of diamond mines) can prevent others from producing the good.
  4. Legal Barriers: The government may grant a firm exclusive rights to operate, such as in the case of public utilities.

  Because of these barriers, no new firms can enter the market. The monopolist can therefore maintain its market power, restrict output to Qm, charge the high price Pm, and continue to earn abnormal profits even in the long run.

  Part (b)

  The view that monopoly is always against the interest of consumers is a compelling one, as standard economic theory highlights significant drawbacks. However, a comprehensive evaluation reveals situations where a monopoly may not be entirely detrimental, and could even be beneficial.

  Arguments that Monopoly is Against Consumer Interests

  The primary argument against monopoly is that it leads to allocative inefficiency and a reduction in consumer welfare. Unlike in perfect competition where firms produce where Price (P) equals Marginal Cost (MC), a profit-maximizing monopolist restricts output to a level where P > MC. This means consumers value the last unit produced more than it cost to make, signaling an under-allocation of resources to the product's production.

  This results in two main negative outcomes for consumers. Firstly, the price charged by the monopolist (Pm) is higher than the price would be in a competitive market (Pc), and the quantity produced (Qm) is lower than the competitive quantity (Qc). This leads to a transfer of surplus from consumers to the producer in the form of abnormal profits, and a loss of potential consumer surplus on units that are no longer produced. The total welfare loss to society, known as deadweight loss, represents the net loss of consumer and producer surplus from the market not being allocatively efficient.

  A powerful real-world example is Mylan's pricing of the EpiPen. Mylan acquired the rights to the EpiPen, an auto-injector for life-threatening allergic reactions, and faced very little competition. It systematically raised the price from around $100 for a two-pack in 2007 to over$600 by 2016. For consumers with severe allergies, the EpiPen is a necessity, not a luxury, making demand highly inelastic. Mylan exploited its monopoly power to raise prices significantly, directly harming consumers by making a life-saving device unaffordable for many. This is a classic case of a monopoly acting against consumer interests by charging exorbitant prices and reducing access.

  Arguments that Monopoly is NOT Always Against Consumer Interests

  Conversely, there are strong counter-arguments. One key benefit can arise from economies of scale, particularly in the case of a natural monopoly. A natural monopoly occurs when the most efficient number of firms in an industry is one, typically due to extremely high fixed costs. This means the firm's long-run average cost (LRAC) curve is downward sloping over the entire range of market demand. In such cases, a single firm can produce a given quantity of output at a lower average cost than two or more firms could. Examples include public utilities like water supply or electricity distribution. Having multiple companies lay competing sets of water pipes would be inefficient and costly. A single provider can achieve a lower cost per unit, and if regulated, can pass these cost savings onto consumers in the form of lower prices than would be possible in a competitive market.

  A second, and perhaps more significant, argument in favour of monopoly is its potential to foster dynamic efficiency and innovation. The abnormal profits earned by a monopolist can be reinvested into research and development (R&D). The promise of being protected by patents and earning long-run abnormal profits provides a powerful incentive for firms to undertake risky and expensive R&D projects to create new products and technologies. In a perfectly competitive market, firms earning only normal profits in the long run lack both the means and the incentive for such large-scale innovation.

  A prime real-world example is the pharmaceutical industry and the development of COVID-19 vaccines. Companies like Pfizer and Moderna invested billions in R&D to create vaccines in record time. The patent system grants these firms a temporary monopoly on their specific vaccine formula, allowing them to earn significant profits. While debates exist about pricing and access, these potential profits were a crucial driver of the rapid innovation that has saved millions of lives and allowed economies to reopen. From this perspective, the temporary monopoly power, by spurring life-saving innovation, acted profoundly in the interest of consumers worldwide.

  Conclusion

  In conclusion, the assertion that monopoly is always against the interest of consumers is an oversimplification. Unregulated monopolies, like the EpiPen case, clearly demonstrate the potential for consumer exploitation through higher prices and lower output. However, this view is not universally applicable. In industries with significant economies of scale, a natural monopoly may be the most efficient way to provide a service, potentially leading to lower prices for consumers if properly regulated. Furthermore, the potential for long-run abnormal profits can drive dynamic efficiency and innovation, leading to technological breakthroughs that provide immense benefits to consumers, as seen with the development of new medicines. Therefore, the impact of a monopoly on consumer welfare is nuanced and depends heavily on the specific industry, the potential for innovation, and the presence of effective government oversight.

  ---

  How it meets the IB criteria

  • A — Part (a) [10 marks] — The response directly addresses why abnormal profits are sustained in the long run by focusing on barriers to entry. It defines key terms like monopoly, abnormal profit, and barriers to entry. A standard monopoly diagram is described in detail, showing the profit-maximising equilibrium (MC=MR) and the resulting abnormal profit area. The explanation links the diagram directly to the concept of long-run sustainability by contrasting it with perfect competition, thus fully explaining the relevant theory.
  • B — Part (b) [15 marks] — The response directly addresses the evaluative command 'evaluate the view'. It presents a balanced argument, first explaining why monopolies harm consumers (allocative inefficiency, higher prices) and then providing counter-arguments (economies of scale, dynamic efficiency). Relevant theory is used throughout, including concepts like allocative efficiency (P>MC), deadweight loss, natural monopoly, and dynamic efficiency. The evaluation is supported by two distinct, well-developed real-world examples: Mylan's EpiPen for the negative case and pharmaceutical R&D (e.g., Pfizer's COVID vaccine) for the positive case of innovation. The conclusion provides a final synthesis, weighing the arguments and concluding that the statement is an oversimplification, thus demonstrating effective evaluation.

  Common ways to drop marks

  • In Part (a), explaining how a monopoly makes abnormal profit but failing to explain why it persists in the long run. The answer focuses only on the MC=MR diagram without linking it to barriers to entry.
  • In Part (a), drawing an inaccurate or poorly labelled diagram, such as having the MR curve above the AR curve, or failing to show the ATC curve correctly to illustrate abnormal profit.
  • In Part (b), providing a one-sided answer that only argues why monopolies are bad for consumers, failing to provide counter-arguments and thus not 'evaluating' the view.
  • In Part (b), using a real-world example without developing it. For example, just naming 'Microsoft' without explaining how its market position illustrates either the harms or benefits of monopoly in relation to consumer interest.

  Examiner tip: For evaluative questions, structure your answer around a 'thesis, antithesis, synthesis' framework, using specific real-world examples to make your theoretical arguments concrete and persuasive.

  ---

  AI-generated exemplar for revision, grounded in the official IB assessment criteria and reviewed by the MarkScheme team. Write your own response for assessed work. Mark your own answer →

  @markscheme_answers

Your answer

Sign in to answer this question.