How to write a business case study

Writing a business case study is different from an academic essay or a reflection paper. A business case study analyzes a real or hypothetical business situation, identifies problems, evaluates alternatives, and recommends a course of action. It is problem-solving in narrative form.

Unlike an argumentative essay, you are not trying to “win” a debate. You are trying to demonstrate structured analytical thinking that leads to a defensible business decision.

Here is a complete, step-by-step guide to writing a business case study—from reading the case to presenting your recommendation.

Step 1: Understand the Two Types of Business Case Studies

This guide focuses on the academic case study (most common request). Professional case studies are shorter and more promotional.

Step 2: Read the Case Like an Analyst (Not a Reader)

Before writing, you must analyze. Most students fail because they read the case once and start writing.

Your 5-step case reading process:

1. Skim first (5 min): Headings, exhibits, financial tables, bolded terms
2. Identify the central problem (10 min): What decision must be made? (e.g., “Should Tesla acquire a lithium mine?”)
3. Identify the stakeholders (5 min): Who is affected? (CEO, shareholders, employees, suppliers, customers)
4. Extract key data (10 min): Pull numbers, quotes, and timeline events into a separate document
5. Apply frameworks (15 min): Which tools fit? (SWOT, PESTEL, Financial ratios, etc.)

Critical rule: Do not propose a solution until you have completed this analysis. Jumping to conclusions is the #1 mistake.

Step 3: Structure Your Business Case Study

Most academic business case studies follow this standard structure (check your syllabus, but this works for 90% of assignments).

Complete Structure (1500-3000 words)

Step 4: Write Each Section with a Template

1. Executive Summary (Write This Last)

Despite appearing first, write it after finishing everything else. It’s a mini-version of the entire case.

Template:

[Company] faces [central problem]. Analysis of [external factor X] and [internal factor Y] reveals that the root cause is [root cause]. After evaluating [Alternative A], [Alternative B], and [Alternative C], this case recommends [chosen alternative] because [key reason 1] and [key reason 2]. Implementation requires [3 concrete steps] over [timeframe], with expected [metric] improvement of [amount].

Example:

*”Tesla faces a strategic decision: whether to acquire a lithium mining operation or continue purchasing from third parties. Analysis of rising lithium prices (up 300% since 2020) and Tesla’s internal battery production bottlenecks reveals that supply chain vulnerability is the root problem, not just cost. After evaluating acquisition, long-term contracts, and vertical integration without ownership, this case recommends acquisition of a specific junior miner (Lithium Americas Corp) because it secures pricing certainty and aligns with Tesla’s 2030 production targets. Implementation requires a $1.5B initial investment over 12 months, with expected battery cost reduction of 18% and gross margin improvement of 4 percentage points.”*

2. Problem Identification (Be Precise)

Do not list every complaint. Find the root problem—the one thing that, if solved, makes other issues disappear.

Symptoms vs. Root Problem:

Phrase your problem statement as:

“The central problem facing [Company] is [specific, actionable problem], evidenced by [key data point 1] and [key data point 2].”

3. External Analysis (Use Frameworks)

Choose frameworks based on your case.

Example (Porter’s Five Forces for Netflix, 2023):

“The threat of substitutes is high—TikTok, YouTube, and gaming now compete for the same leisure hours. Buyer power is also high, with low switching costs ($0 to cancel). However, supplier power (content creators) remains moderate, as Netflix’s global scale still attracts top talent. The overall industry is moderately unattractive for new entrants due to capital requirements, but existing players face intense rivalry.”

4. Internal Analysis (Use Frameworks)

Pro tip: A SWOT analysis alone is not enough. Combine it with a framework that shows relationships (e.g., TOWS matrix, which matches Strengths to Opportunities).

5. Alternatives (Generate 2-4 Options)

Do not just present the “obvious” answer. Show that you considered multiple paths.

How to generate alternatives:

• Alternative A: Do nothing (status quo) – always include as baseline
• Alternative B: Obvious strategic move
• Alternative C: Creative or counterintuitive option

For each alternative, evaluate:

• Pros (list 3-4, with evidence)
• Cons (list 3-4, with evidence)
• Financial impact (estimate if numbers available)
• Feasibility (high/medium/low)

Example (Starbucks considering expansion in India):

6. Recommended Solution (Choose One and Defend)

State your recommendation clearly, then justify using evidence from your analyses.

Template:

“This case recommends [Alternative B] because it best addresses the root problem of [restate root problem]. Unlike [Alternative A], which [key weakness], this recommendation leverages the company’s strength in [internal strength] while mitigating the external threat of [external threat]. Specifically: [3 reasons with evidence].”

Do not say: “All alternatives have pros and cons” (too vague).
Do say: “Alternative B is superior because it generates positive NPV within 18 months, unlike Alternative A (negative NPV) and Alternative C (48-month payback).”

7. Implementation Plan (Show You’re Practical)

Professors want to see that you can move from analysis to action. Include:

Example (Implementation for Tesla lithium acquisition):

*Phase 1 (Months 1-3): Form cross-functional due diligence team (finance, legal, engineering). Budget: $2M. Success metric: Due diligence report completed.*
*Phase 2 (Months 4-9): Negotiate acquisition terms with Lithium Americas. Budget: $1.5B. Success metric: Signed LOI.*
*Phase 3 (Months 10-12): Integrate supply chain and secure regulatory approval. Risk: FTC review delay. Mitigation: Prepare antitrust justification in parallel.*

8. Conclusion (Short and Punchy)

One paragraph only. No new information.

*”Tesla should acquire Lithium Americas Corp. This recommendation addresses the root problem of supply chain vulnerability, leverages Tesla’s balance sheet strength, and positions the company for 2030 production targets. With an 18-month implementation timeline and clear risk mitigations, this strategy transforms a critical vulnerability into a competitive moat.”*

Step 5: Avoid Common Mistakes

Step 6: Use Data Visually (If Allowed)

Tables and charts are expected in business case studies, not optional.

Example table (Alternatives comparison):

Complete Example Outline (Short Version – 1500 words)

Case: Should Peloton acquire a fitness apparel company?

I. Executive Summary (150 words)
Peloton faces slowing hardware sales. The root problem is declining customer lifetime value. Acquisition of Lululemon or Outdoor Voices is evaluated. Recommendation: Acquire Outdoor Voices for $500M to cross-sell apparel to Peloton’s 6M subscribers. Implementation: 9 months, expected 15% increase in subscription retention.

II. Situation Analysis (200 words)
Peloton: Post-pandemic hardware sales down 40%, subscription revenue up 20%. Industry: Connected fitness growing at 8% CAGR; apparel at 12% CAGR.

III. Problem Identification (150 words)
Root problem: Customer lifetime value has dropped from $4,000 to $1,800 due to hardware saturation. Secondary issues (churn, marketing costs) are symptoms.

IV. External Analysis – Porter’s Five Forces (300 words)
High rivalry (NordicTrack, Echelon). High substitute threat (gyms reopening, outdoor running). Supplier power low (hardware commoditizing). Buyer power high (low switching costs). Industry moderately unattractive for hardware but attractive for apparel.

V. Internal Analysis – VRIO (300 words)
Valuable: Brand, 6M subscribers. Rare: Integrated hardware+software. Costly to imitate: Content library. Organized: Yes. Sustainable advantage exists but not in hardware.

VI. Alternatives (250 words)
A: Status quo (focus on software). B: Acquire Lululemon ($10B, too expensive). C: Acquire Outdoor Voices ($500M, brand fits younger demographic).

VII. Recommendation (200 words)
Alternative C. Why: Lowest cost, best brand fit, fastest integration. Evidence: Peloton’s average user age is 42; Outdoor Voices targets 25-35. This expands TAM.

VIII. Implementation (200 words)
Months 1-3: Due diligence. Months 4-6: Integration planning. Months 7-9: Cross-promotion launch. Budget: $500M + $50M integration. KPIs: Apparel attach rate (target 25%). Risk: Brand dilution. Mitigation: Keep Outdoor Voices distinct but co-branded.

IX. Conclusion (100 words)
Outdoor Voices acquisition addresses Peloton’s falling lifetime value, leverages existing subscribers, and captures apparel growth. Implementation is feasible within 9 months. Without this move, Peloton’s hardware decline will accelerate.

Quick Checklist Before Submitting

• Executive summary written last (and includes problem, analysis, recommendation, implementation)
• Root problem identified (not symptoms)
• At least two analytical frameworks used (e.g., Porter’s Five Forces + Financial ratios)
• 3-4 alternatives presented with pros/cons
• Recommendation clearly chosen and justified with evidence from earlier sections
• Implementation plan includes: timeline, budget estimate, metrics, risks
• Data presented in a table or chart (if allowed)
• No first-person (“I think”) – use third person or passive voice appropriately
• Financials included (even rough estimates)
• References cited (if external sources used)

Final Tip: Think Like a Consultant

The best business case studies answer three questions clearly:

1. What is the real problem? (Not the obvious one)
2. Why does your solution work? (Evidence, not opinion)
3. How exactly will you do it? (Concrete steps)

Professors and executives don’t want elegant writing. They want structured, evidence-based problem-solving. A messy case study with good analysis always beats a beautiful case study with weak analysis.