Retail and consumer goods is one of the most frequently tested industries in consulting case interviews — appearing in roughly 20% of first-round cases at MBB and Big Four firms. The sector’s appeal to interviewers is straightforward: it combines tangible business models with layered complexity across channels, geographies, and consumer segments, giving candidates ample room to demonstrate structured thinking.
The Retail & CPG Value Chain
Understanding the end-to-end value chain is your first advantage. Interviewers expect you to know where value is created and where margin leaks occur without needing a prompt.
The retail and CPG value chain flows through distinct stages:
flowchart LR
A[Sourcing & Procurement] --> B[Manufacturing / Processing]
B --> C[Distribution & Logistics]
C --> D[Retail Operations]
D --> E[Consumer / End User]
E --> F[After-Sales & Returns]
style A fill:#e8f4fd
style D fill:#e8f4fd
Each stage carries distinct cost drivers and margin profiles. In our experience working with retail-focused cases, candidates who can pinpoint where in the value chain a problem sits — before diving into root causes — consistently outperform those who jump straight to hypotheses.
Key margin benchmarks by sub-sector:
| Sub-Sector | Gross Margin | Operating Margin | Inventory Turns/Year |
|---|---|---|---|
| Grocery / Supermarkets | 25–30% | 2–5% | 12–18 |
| Apparel & Fashion | 50–65% | 8–15% | 4–6 |
| Consumer Electronics | 20–30% | 3–8% | 8–12 |
| FMCG / CPG (Manufacturer) | 40–55% | 12–20% | 6–10 |
| Luxury Goods | 65–75% | 20–30% | 2–4 |
| E-commerce Pure-Play | 35–45% | 0–5% | 10–20 |
These ranges give you immediate calibration during a case. If an interviewer says “our client’s grocery chain runs a 12% operating margin,” you should recognize that’s anomalously high — prompting questions about private-label mix, premium positioning, or accounting differences.
Five Metrics That Drive Every Retail Case
Retail cases ultimately reduce to a handful of operating metrics. Knowing these — and how they interact — lets you structure any retail problem quickly.
- Same-Store Sales Growth (SSS): Revenue growth from existing locations, stripping out new store openings. The single most-watched retail health indicator.
- Revenue per Square Foot: Space productivity. Ranges from ~$300 (discount grocery) to $5,000+ (luxury boutiques like Apple or Tiffany).
- Gross Margin Return on Inventory (GMROI): Gross margin divided by average inventory cost. Measures how efficiently capital tied up in stock generates profit.
- Customer Acquisition Cost vs. Lifetime Value (CAC:LTV): Critical for DTC and e-commerce models. Healthy ratio is typically 1:3 or better.
- Sell-Through Rate: Units sold as a percentage of units received. Low sell-through signals markdown risk and working-capital drag.
Common Case Archetypes
Based on our analysis of 800+ retail and consumer goods cases, five archetypes appear repeatedly:
mindmap
root((Retail & CPG Case Types))
Profitability Decline
Margin compression
Channel mix shift
Promotional erosion
Growth Strategy
New format launch
Geographic expansion
Category adjacency
Pricing & Promotions
Price elasticity
Promo effectiveness
Private label threat
Digital / Omnichannel
E-commerce buildout
Click-and-collect
Last-mile economics
Operations & Supply Chain
Inventory optimization
Store network rationalization
Demand forecasting
Archetype 1: Profitability Decline
The classic “our retailer’s margins are falling” case. In retail, the answer is rarely a single cause. Interviewers want to see you disaggregate systematically — by channel (online vs. physical), by category, by customer segment — before isolating the driver.
Typical causes: channel mix shift toward lower-margin e-commerce, promotional over-spending, input cost inflation without pass-through, shrinkage, or rent escalation in physical locations.
Archetype 2: Growth Strategy (New Market or Format)
A retailer or CPG company wants to enter a new geography, launch a new store format (e.g., smaller urban stores), or expand into adjacent categories. The framework combines market entry analysis with retail-specific considerations: real estate availability, supply chain reach, local competitive density, and regulatory environment.
Archetype 3: Pricing & Promotions
CPG pricing cases test whether you understand trade-offs between volume, margin, brand equity, and retailer relationships. Key question: who captures the value? In our experience, candidates often forget that manufacturer pricing decisions flow through retailer economics — a 10% price increase doesn’t translate 1:1 to shelf price when retailer margins and promotional agreements intervene.
Archetype 4: Digital Transformation & Omnichannel
Increasingly common since 2020. These cases ask how a traditional retailer should invest in e-commerce, what the unit economics of delivery look like, or how to integrate online and offline channels. The critical insight: omnichannel customers typically spend 30–50% more than single-channel shoppers, but serving them costs more per transaction.
Archetype 5: Supply Chain & Operations
Inventory management, demand forecasting, store network optimization. These overlap with operations framework but require retail-specific knowledge: seasonality patterns, perishability constraints, last-mile delivery economics, and the bullwhip effect in multi-tier retail supply chains.
Industry Trends Interviewers Expect You to Know
You don’t need to be an industry analyst, but showing awareness of macro trends signals commercial maturity. These five are most likely to appear as case context:
| Trend | Case Implication | Example Prompt |
|---|---|---|
| Retail media networks | Retailers monetizing customer data via advertising platforms | “Should our grocery client launch a retail media business?” |
| Quick commerce | 15-minute delivery reshaping last-mile economics | “A dark-store operator is losing money on every order — fix it” |
| Private label surge | Store brands capturing 30–40% share in mature markets | “How should our CPG client respond to retailer private-label growth?” |
| Sustainability pressure | ESG requirements adding cost across the supply chain | “Our fashion client needs to cut Scope 3 emissions 40% — what’s the cost?” |
| AI-driven personalization | Dynamic pricing, personalized promotions, demand sensing | “Where should our retailer invest its $50M AI budget?” |
How to Structure a Retail Case in 60 Seconds
When you receive a retail case, use this mental checklist to orient yourself before speaking:
- Which part of the value chain? Manufacturer, distributor, or retailer?
- Which sub-sector? Grocery, apparel, electronics, luxury — each has different economics
- What’s the revenue model? Product margin, subscription, marketplace commission, advertising?
- Physical, digital, or hybrid? Determines cost structure and growth levers
- B2C or B2B? A CPG manufacturer selling to retailers vs. selling DTC are fundamentally different problems
This 60-second orientation prevents the most common retail case mistake: applying a generic profitability tree without accounting for industry-specific mechanics.
Key Takeaways
- Retail and CPG cases appear in ~20% of consulting interviews — sector fluency is not optional
- Know the value chain stages and where margin concentrates (manufacturing for CPG, operations for retailers)
- Master five core metrics: SSS growth, revenue/sqft, GMROI, CAC:LTV, and sell-through rate
- Recognize the five dominant archetypes — profitability decline, growth strategy, pricing, omnichannel, and operations
- Show awareness of current trends (retail media, quick commerce, private label, sustainability, AI) to demonstrate commercial judgment
- Always orient with the 60-second checklist before structuring: value chain position, sub-sector, revenue model, channel, and customer type
Practice With Real Cases
The best way to internalize retail industry knowledge is to practice with real case scenarios. Explore retail industry cases and consumer goods cases in our case library, then test your frameworks in a timed setting with our AI Mock Interview. For deeper framework knowledge, review the profitability framework guide and growth strategy framework — both apply heavily in retail contexts.