Business Management · Decision-making process, attitude to risk and competition

Competitive Environment and Industry Analysis for CB3

Updated 11 October 2026 · Fact-checked

Competitive environment analysis studies how rivalry, entry, substitutes, buyers and suppliers shape an industry's profits (Porter's five forces), and how the market structure, such as perfect competition or oligopoly, limits a firm's choices. You apply it by judging each force, then deciding where the organisation should position itself.

Understand Competitive Environment and Industry Analysis

An industry is a group of firms selling products that customers see as close substitutes. Some industries earn high profits for years. Others earn very little. Industry analysis asks why. The answer lies in the structure of competition, not only in how well each firm is run.

Porter's five forces is the standard tool. The five forces are: threat of new entrants, threat of substitutes, bargaining power of buyers, bargaining power of suppliers, and rivalry among existing competitors. The stronger the forces, the lower the profit the industry can keep. Weak forces mean higher profit potential.

Market structure describes how many firms there are, how alike their products are, and how easily firms can enter. In perfect competition there are many small firms, identical products, free entry and exit, and firms are price takers. In a monopoly one firm supplies the market and has strong pricing power, though regulation may limit it. In monopolistic competition many firms sell differentiated products. In an oligopoly a few large firms dominate, and each firm's decision depends on what rivals will do. This is why game theory is used for oligopoly.

Strategic positioning is the next step. After you read the forces, you decide how the organisation should respond. It might build barriers to entry, differentiate its product, lower costs, tie up distribution, or focus on a niche. The analysis should lead to a recommendation, not just a list.

For an insurer, you can apply the same logic. Entry may be limited by capital and licensing requirements. Buyers may be strong if policies are easy to compare online. Suppliers can include reinsurers, distributors and IT providers. Substitutes can include self-insurance, government schemes or investment products. Rivalry may be intense where products are similar and price is visible. Treat these as points to test against the facts given in the question.

Key rules to remember

Porter's five forces: Industry profit potential = f(entrants, substitutes, buyers, suppliers, rivalry); This is a framework, not a numerical formula. Name all five forces and judge each as high, medium or low.
Perfect competition conditions: Many sellers + identical product + free entry/exit + price takers; All conditions must hold. Firms earn only normal profit in the long run.
Profit-maximising output rule: MR = MC; Applies to firms in any market structure. In perfect competition, price = MR, so P = MC.
Monopoly pricing position: P > MR = MC at the profit-maximising output; Price is read from the demand curve at that output. Applies to a firm facing a downward-sloping demand curve.
Oligopoly feature: Interdependence: my best action depends on rivals' actions; Use game theory ideas such as price wars or collusion when answering.

How to solve Competitive Environment and Industry Analysis questions

Use this method for any question on competition, industry analysis or positioning. Always tie each point to the case facts.

1Read the question and define the industry and the firm. Say which products and customers you mean.
2Identify the market structure. Check number of firms, product similarity, entry barriers and pricing power.
3Go through the five forces one at a time. For each, give the evidence from the case and rate it high, medium or low.
4Explain the effect on profit. A strong force reduces the profit the industry can keep.
5Note limits and changes. Mention regulation, technology and new entrants that may shift the forces.
6Decide the positioning. Link each strong force to a response, such as differentiation, cost control, partnership or focus.
7Give a clear recommendation and state a key risk or assumption.

Quickest way: Five forces, rate and respond

When to use it: Use this for short written parts and when time is tight in case-study questions.

Write the five force names as a list.
Beside each, add one case fact and a rating.
Pick the two strongest forces.
Write one response for each.
Add one line on market structure and one on the recommendation.

Common mistakes in Competitive Environment and Industry Analysis

Listing the five forces without applying them to the case.
Students memorise the framework and stop there.
Fix: Attach a fact from the question to every force and say what it means for profit.
Confusing the threat of substitutes with rivalry among existing firms.
Both involve competing products.
Fix: Rivals sell the same type of product. Substitutes meet the same need in a different way, such as a savings scheme replacing a life policy.
Saying strong forces mean the firm is badly run.
Students mix industry structure with firm performance.
Fix: The forces describe the industry. A well-run firm can still earn less where forces are strong.
Describing oligopoly as having just two firms or as always colluding.
Textbook examples are simplified.
Fix: Say a few dominant firms, interdependent decisions, and that outcomes can be collusion or a price war.
Stating that perfect competition has high profits.
Students link competition with market power wrongly.
Fix: In the long run, free entry removes excess profit, leaving normal profit.
Ending with analysis and no positioning recommendation.
Students run out of time or treat the task as description.
Fix: Reserve the last few minutes for a clear action and one risk.

Worked examples

Example 1

A new online-only health insurer plans to enter a market with several established insurers. Policies are easy to compare on aggregator sites. Using Porter's five forces, assess the industry's attractiveness.

Show the solution

Define the industry: retail health insurance sold to individuals and families.
New entrants: licensing and capital needs act as barriers, but online distribution lowers the cost of reaching customers. Rate the threat medium.
Substitutes: government health schemes, employer cover and self-funding meet the same need. Rate medium.
Buyers: easy comparison on aggregator sites makes price comparison simple and switching low-cost. Rate buyer power high.
Suppliers: hospital networks and reinsurers have some bargaining power over costs and terms. Rate medium to high.
Rivalry: several established insurers with similar products and visible prices suggests strong rivalry. Rate high.
Overall: several strong forces limit profit potential.

Answer: The industry is moderately unattractive for profit. Buyer power and rivalry are high. The entrant should differentiate on service or product design and negotiate carefully with hospitals.

Example 2

Explain the difference between perfect competition and oligopoly, and state which suits a market with a few large life insurers.

Show the solution

Perfect competition: many small sellers, identical products, free entry and exit, price takers. Firms cannot influence the price.
Oligopoly: a few large firms, products may be similar or differentiated, significant entry barriers.
In oligopoly each firm's decision depends on rivals' likely responses, so firms may compete on non-price factors or avoid price cuts.
Long-run profit: perfect competition gives normal profit only. Oligopoly can sustain higher profit if firms avoid price wars.
A market with a few large life insurers has few dominant firms and high entry barriers, so it fits oligopoly.

Answer: Perfect competition has many price-taking firms and identical products. Oligopoly has a few interdependent firms with barriers to entry. A market with a few large life insurers is best described as an oligopoly.

Exam tips

Always apply the framework to the case facts. Marks are given for the link, not the list.
Use the exact force names and rate each one, so the marker can see a clear judgement.
For market structure questions, name the four features: number of firms, product type, entry barriers and pricing power.
Finish with a positioning recommendation. In CB3 case studies, a clear action usually separates strong answers from weak ones.
In MCQs, check whether the question asks about the industry or the firm, and read the market structure conditions carefully.

Practice questions from Decision-making process, attitude to risk and competition

Competitive Environment and Industry Analysis in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Competitive Environment and Industry Analysis: frequently asked questions

What are Porter's five forces?

They are the threat of new entrants, the threat of substitutes, the bargaining power of buyers, the bargaining power of suppliers and rivalry among existing competitors. Together they decide how much profit an industry can keep. You judge each force from the case facts.

How do I analyse the competitive environment of an insurer?

Define the market first, then test each of the five forces with the facts given. Consider capital and licensing barriers, comparison websites, reinsurers and distributors, and substitute products. Finish with how the insurer should position itself.

What is the difference between perfect competition and oligopoly?

Perfect competition has many small price-taking firms selling identical products with free entry. Oligopoly has a few large firms whose decisions depend on each other, with significant barriers to entry. Oligopoly firms often have more pricing power.

Is competition analysis only theory in CB3?

No. It is usually applied to a case study or a business scenario. You need to use the framework to reach a recommendation that fits the facts.