Know enough about the sector to ask better questions
Industry knowledge becomes useful in a case when it changes what you investigate. A bank’s growth requires a risk discussion. A factory’s growth may require capacity. A public programme’s success depends on outcomes beyond revenue.
Quick Prep’s Industry Analysis focuses on that practical fluency. It helps you understand how a sector creates value, who captures it and which constraints shape a client’s options. The goal is to make your problem solving more specific and your assumptions more defensible.
This service area is useful for generalist candidates encountering unfamiliar businesses and for experienced candidates translating sector knowledge into structured case reasoning. It also supports conversations about practice areas and the types of client problems that interest you.
Build the value chain before collecting trends
Start with the product or service and follow it from inputs to the final user. Identify suppliers, producers, distributors, intermediaries, customers and other participants who influence the decision.
Then follow the revenue. Who pays whom, for what unit, at what frequency? The answers explain why participants in the same sector can have different profit drivers.
For example, a software vendor may earn recurring fees, an implementation partner may bill for delivery work and a cloud provider may charge for consumption. Describing all three as “technology businesses” is not enough to analyse their margins or growth.
Ask where bargaining power and switching costs sit. A business may depend on one large customer, a scarce input, a distribution partner or a qualification process. Those relationships affect pricing, expansion and the practical ability to change suppliers.
Translate sector knowledge into a driver model
Create a simple revenue and cost model for the client. A hotel may depend on available rooms, occupancy and room rates; a payments provider may depend on transaction value and take rate; a clinic may depend on completed activity and its payment arrangement.
Choose a few metrics that clarify those economics. Define their denominators and time periods. A measure such as utilisation, retention or margin becomes misleading when different companies calculate it differently.
Company reports are useful for this work. The SEC’s financial-statement guide explains how reporting connects financial performance with the business discussion. Use original filings to understand definitions and risks rather than copying headline ratios from an aggregator. SEC: Beginners’ Guide to Financial Statements
A research method you can repeat
Use a narrow decision question to guide research. “How does a fibre provider make money from a new neighbourhood?” is more productive than collecting every telecom trend.
Start with company filings for business models, statistical agencies for population or production data, regulators for jurisdiction-specific requirements and industry bodies for sector context. Record the period, geography, definitions and limitations of each source.
Separate three types of statement in your notes: an observed fact, a forecast and your inference. A forecast of market growth does not prove that a particular client can win customers. A company describing a strategic priority does not establish that the strategy will succeed.
Build a one-page brief with a value chain, revenue model, main costs, five relevant metrics, two current questions and three plausible case hypotheses. Keep supporting source links so you can revisit assumptions.
Worked example: an operator reports higher revenue and lower profit
Illustrative comparison, using fictional business situations.
Suppose you hear the same prompt for two clients: revenue increased, but profit declined.
For a software company, you might investigate whether growth came from services with higher delivery costs, whether acquisition spending rose or whether existing customers required more infrastructure and support. Customer cohorts and revenue mix would be useful evidence.
For a manufacturer, you might examine product mix, input inflation, overtime, scrap and capacity. Production and shipment measures would matter, as would the distinction between demand and output.
The starting arithmetic of revenue less cost applies to both, but the useful branches differ. Industry Analysis helps you make that transition from a generic equation to questions that can explain the result.
A strong next step is to state a testable hypothesis: “I would first check whether the manufacturer shifted toward products with lower contribution per bottleneck hour.” Then ask for product-level contribution and constrained processing time.
Use the twelve primers as contrasting business models
The industry library covers advanced manufacturing, agribusiness, automotive and mobility, consumer packaged goods, energy and natural resources, financial services, forest products, healthcare and life sciences, media and entertainment, social and public sector, technology services and telecommunications.
Each primer connects sector structure with metrics and a worked exercise. Compare sectors deliberately. Manufacturing and forest products share capacity questions but differ in input recovery and by-product economics. Media and software share recurring-revenue concepts but differ in content rights and delivery models. Healthcare and public services both require careful attention to beneficiaries and outcomes.
This comparison helps you transfer reasoning without forcing every business into the same structure.
Turn research into interview performance
After reading a primer, close it and explain the business model in two minutes. Name the paying customer, revenue unit, major costs and one constraint. Then sketch how a price change, demand shock or investment would affect the economics.
BCG’s case guidance asks candidates to combine structured thinking with business intuition. Our application is to practise using sector facts to choose the next analytical step. BCG: Case interview preparation
Pair this work with Market Analysis when the question concerns customer demand, and Case Interview Mastery when you need to integrate the analysis into a full conversation. Contact Quick Prep to discuss the sectors most relevant to your preparation. The preparation resources, organised by stage, show where sector reading fits alongside case and fit practice.