Lesson 9 of 12
Competitive response case interview: framework and worked example
Competitive response cases ask how a company should react when a rival makes a move. This lesson gives you a framework for understanding the threat, sizing it, and comparing your options, then walks through a full example with real math.
Part 1 of 9
What is a competitive response case?
A competitive response case starts with a rival's move. A competitor cut prices, launched a better product, opened next door, or merged with another player. The client wants to know how worried to be and what to do about it.
The trap in these cases is panic. The instinct is to match the competitor move for move, which often costs more than the threat itself. Strong answers size the threat first, then compare options by what each one costs and protects.
The skill being tested
Interviewers want to see calm, numbers-driven judgment. Can you figure out which customers are really at risk, put a dollar value on the threat, and pick a response that costs less than the damage it prevents?
Part 2 of 9
How to spot a competitive response case
These prompts start with something a competitor did. Listen for phrases like these:
- A low-cost competitor just entered our market
- Our main rival cut prices by 20%
- A competitor launched a product that beats ours
- Two of our competitors are merging
- A tech startup is taking our customers
- How should we respond?
If the rival's move is a price cut, the case overlaps with pricing. If the damage is already done and profit has fallen, it may be a profitability case instead. Not sure which type a prompt is? The first lesson covers how to identify the case type.
Part 3 of 9
The competitive response framework
Four steps, in order. Most candidates skip straight to the third one.
- How should we respond?
- Understand the moveWhat they did, why, and can they sustain it?
- Size the threatWhich customers, how much profit at risk?
- Compare optionsMatch, differentiate, target, or wait
- Plan the responseTiming, their next move, what to watch
Compare every option on
- Profit it protects
- What it costs
- How the rival reacts next
Understand and size the threat
Ask what the competitor did and why. Can it afford to keep this up, or is it a short-term push? Then work out which of your customers care about what the competitor offers. Rarely is every customer at risk, and the ones who are may not be your most profitable.
Choose a response
The main options are to match the move, differentiate on something the rival cannot copy, protect only the customers most at risk, counterattack in the rival's own market, or wait and watch. Compare each by its cost against the profit it protects.
Price wars rarely have winners
Matching a price cut across all customers often costs more than the business the rival would have taken. Look for targeted responses that protect the customers who are actually at risk.
Want to see how this structure compares to the others? The frameworks guide covers them side by side.
Part 4 of 9
How to solve it, step by step
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Clarify the move and the goal
Confirm exactly what the competitor did, when, and where, and what the client wants to protect: revenue, share, or profit.
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Understand the competitor
Ask why it made this move, what advantages it has, and whether it can sustain it.
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Size the threat
Identify which customers are most likely to switch and put a dollar value on the revenue and profit at risk.
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Compare response options
Lay out options including doing nothing, and compare each one's cost with the profit it protects.
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Recommend and plan
Pick a response, explain how the rival might react next, and say what the client should watch.
Part 5 of 9
Worked example: FitLife gyms
Try each question on your own before you reveal the answer. Say it out loud if you can, the way you would in an interview.
Case prompt
Your client is FitLife, a mid-priced gym chain with 200 locations charging $50 a month. BasicGym, a low-cost chain charging $15 a month, is opening next to 40 FitLife locations over the next year. What should FitLife do?
Question 1
How would you structure this problem?
A strong answer confirms the goal first: FitLife wants to protect profit, not just membership numbers. Then it lays out the four steps for this situation:
- Understand the move: what BasicGym offers for $15 (equipment only, no classes or trainers), why it picked these locations, and whether its model is profitable at that price.
- Size the threat: how many members the 40 affected clubs have, what share might switch, and how much revenue that represents.
- Compare options: do nothing, cut prices at affected clubs, add a cheaper membership tier, or reward members for staying.
- Plan the response: timing before BasicGym opens, how BasicGym might react, and what to track.
A good candidate then says they want to size the threat first, since it sets the budget for any response.
Question 2
Using Exhibit 1, how much revenue is at risk each year?
Exhibit 1: The threat
| Item | Value |
|---|---|
| FitLife locations | 200 |
| Locations near a new BasicGym | 40 |
| Members per location | 2,000 |
| Monthly fee | $50 |
| Members at nearby clubs likely to switch (research) | 15% |
| FitLife total annual revenue | $240M |
Case data is illustrative.
Members likely to switch: 80,000 x 15% = 12,000
Revenue at risk: 12,000 x $50 x 12 months = $7.2M per year
Share of total revenue: $7.2M / $240M = 3%
About $7.2M a year is at risk, roughly 3% of FitLife's revenue. That is real, but it is not an existential threat. It also sets a useful ceiling: any response that costs more than $7.2M a year is worse than doing nothing.
Question 3
Exhibit 2 shows two response options. Compare the total annual cost of each with doing nothing.
Exhibit 2: Response options
| Option | What it involves |
|---|---|
| Cut price at affected clubs | Lower the fee from $50 to $35 for all members at the 40 clubs. Research says this stops all switching. |
| Retention offer | Add perks worth $3 per member per month at the 40 clubs, like free classes and a guest pass. Research says switching drops from 15% to 5%. |
Case data is illustrative.
Cut price to $35: 80,000 x $15 x 12 = $14.4M cost, no members lost = $14.4M
Retention offer cost: 80,000 x $3 x 12 = $2.88M
Members still lost: 80,000 x 5% = 4,000 x $600 = $2.4M
Retention offer total: $2.88M + $2.4M = $5.28M
Cutting prices costs twice as much as the threat itself, because FitLife would give up $15 a month on all 80,000 members to keep 12,000 of them. The retention offer is the cheapest option at about $5.3M, saving roughly $1.9M a year compared with doing nothing.
Question 4
The CEO walks into the room. What is your recommendation?
"FitLife should not match BasicGym's price. Instead, it should launch a retention offer at the 40 clubs near new BasicGym locations.
About 12,000 members are at risk, worth $7.2M a year, or 3% of revenue. Cutting prices to $35 would cost $14.4M, twice the threat, because we'd give the discount to every member to keep a few. A retention offer with perks like free classes costs about $2.9M and cuts switching from 15% to 5%, for a total cost of about $5.3M. That's the lowest-cost option and saves about $1.9M a year compared with doing nothing.
It also plays to our strengths. BasicGym offers equipment only, so we should compete on classes and coaching rather than price. The main risk is that BasicGym expands to more of our locations, so I'd track switching at the first clubs it opens near and be ready to roll the offer out further."
Why this works: it sizes the threat, rules out the obvious overreaction with numbers, and picks a response that fits the company's advantages.
Part 6 of 9
Common mistakes
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Overreacting with a price war
Matching a rival's price across the board often costs more than the threat.
Instead: compare the cost of each response with the profit it actually protects.
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Not sizing the threat
Without a number, you cannot judge whether a response is worth it.
Instead: estimate how many customers are at risk and what they are worth.
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Assuming every customer will leave
Low-cost rivals usually attract price-sensitive customers, not everyone.
Instead: identify which segments are truly at risk.
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Ignoring why the rival moved
A move the competitor cannot sustain calls for a different answer than one it can.
Instead: ask about the competitor's costs, goals, and staying power.
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Forgetting the rival's next move
Your response will trigger a reaction of its own.
Instead: think one step ahead about how the competitor will respond.
Part 7 of 9
Variations you'll see
The same four steps handle every version below. What changes is the kind of threat.
- Low-cost entrant
- The classic form, like the FitLife example. Size the at-risk segment and compete on what the entrant does not offer.
- Rival price cut
- An existing competitor drops its price. Check whether it can afford to keep it there, using the pricing lesson.
- Better product
- A competitor launches something superior. Options include improving your product, repositioning, or partnering.
- Competitor merger
- Two rivals combine and gain scale. Focus on where the combined company will be stronger and where it will be distracted.
- New business model
- A startup changes how the product is sold, like online or by subscription. Decide whether to copy it, acquire it, or differentiate.
Part 8 of 9
Practice what you learned
Reading a framework is not the same as using it under time pressure. Put this lesson to work:
Try a full case
More ways to practice
Part 9 of 9
Frequently asked questions
What is the competitive response framework in a case interview?
It has four steps: understand the competitor's move and why it made it, size the threat to the client in customers and profit, compare response options including doing nothing, and plan the response with the rival's next move in mind.
How do you structure a competitive response case?
Clarify the move and the client's goal, understand the competitor's motives and staying power, size the revenue and profit at risk, compare options by their cost and the profit they protect, then recommend a response and what to watch.
Should a company always match a competitor's price cut?
No. Matching a price cut gives the discount to every customer, including those who would never have left. It often costs more than the business at risk. Targeted responses and differentiation are usually cheaper.
What are the main ways to respond to a competitor?
Match the move, differentiate on something the rival cannot copy, protect only the customers most at risk, counterattack in the rival's core market, or wait and monitor.
How is a competitive response case different from a pricing case?
A competitive response case starts with a rival's move and considers many kinds of responses. A pricing case focuses only on what the client should charge, though it can be one piece of a competitive response.
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