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Business Sense

Business sense refers to the ability to quickly grasp economic dynamics and make decisions that are both strategically and commercially sound. In consulting, it’s not enough to repeat theories from your business degree. What matters is a deep understanding of how companies operate, what drives markets, and what different stakeholders are aiming to achieve.

Consultants with strong business acumen can quickly adapt to new industries, understand client needs, and set priorities that make economic sense. They don’t just ask, “What is analytically correct?” – they also ask, “What truly benefits the company?” This mindset often makes the difference in a case interview.

Table of contents

Why Your Business Sense Matters in Consulting

How Business Sense Shows Up in Case Interviews

1. Define a clear objective.

2. Develop sound hypotheses.

3. Evaluate actions realistically.

4. Interpret numbers in the right context.

5. Make a well-founded recommendation.

How to Train Your Business Sense

Key Takeaways

Why Your Business Sense Matters in Consulting

As a consultant, you’re expected not only to analyze complex problems but also to think in a solution-oriented and entrepreneurial way. A strong business mindset helps you put analyses into context, assess actions realistically, and focus on generating maximum client value.

In day-to-day consulting, you're working under pressure, collaborating with decision-makers, and constantly weighing trade-offs. Those who think commercially and can strategically prioritize have a clear edge.

In a case interview, showing that you understand markets and business models is key – it sets you apart and proves your readiness for the job.

👉 In our Case Library, you can prepare effectively with curated practice cases and put your business sense to the test.

Case by

PrepLounge

RWE Consulting Case: Floating Wind in Japan

RWE is an international renewables company with a proud heritage of more than 125 years in the energy business. Recently, during the Capital Markets Day in 2023, RWE’s CEO renewed the company’s 2030 vision of being a global leader in green energy. To achieve this, additional substantial investments in clean technologies are planned, allowing for a total capacity of more than 30 GW to be added until then. Against this background,RWE is constantly scanning for attractive investment opportunities in core and new markets with a focus on renewable energy sources like offshore or onshore wind as well as photovoltaics. After winning an offshore wind project on the Japanese West Coast, let us assume, for the context of this case study, that RWE is now actively exploring additional opportunities in Japan. The RWE Consulting team was asked to evaluate the attractiveness of the Japanese market and find suitable additional investment opportunities with special interest in the new technology of floating offshore wind. Specifically, your job as a consultant is to provide a “Go or No-Go” recommendation on whether to invest in floating wind in Japan.

4.6

34.0k times solved

Difficulty: Intermediate

Interviewer-led

Market analysis

Market entry

Market sizing

Profitability analysis

Open case

Company case provided by Company case by

Mercedes-Benz Management Consulting

MBMC Case: Exploring the future of automotive mobility

As a consultant at Mercedes-Benz Management Consulting (MBMC), you are actively shaping the future of automotive mobility. While you are contributing to decisive projects that design the future of the world’s No.1 premium carmaker, you also develop your own career path, and you have the unique possibility to build your personal brand and cultivate relationships with the top management. Your client on your current project is the head of product strategy who reports directly to the CEO. She asks you to explore new profit pools and business opportunities regarding innovations and monetarization strategies. Initially, you shall structure and explore potential business models, and discuss necessary conditions and implications of these business models. In a next step, you shall quantitatively analyze possible options and prepare them for decision. And of course, the client is interested in your recommendation.

3.7

13.5k times solved

Difficulty: Intermediate

Interviewer-led

New product

Profitability analysis

Open case

Company case provided by Company case by

Deloitte

Deloitte Case: Footloose

Duraflex is a German footwear company with annual men’s footwear sales of approximately €1 b. They have always relied on the boot market for the majority of their volume. In this market they compete with three other major competitors. In the fall of 2019, Badger – one of Duraflex’s competitiors – launched a new line of aggressively priced work boots. The strong success of this line has caused Duraflex’s management to re-evaluate their position in work boots. With limited additional resources, the management must now decide if they should focus their efforts on competing with Badger in the work boot sector, or allocate their resources on further strengthening their position with casual boots. The management team approached you and asked for your advice. In order to advise them on their future work boot strategy please prepare first some insights regarding market size and competitive landscape.

4.4

103.0k times solved

Difficulty: Intermediate

Candidate-led

Competitive response

Market analysis

Open case

Case by

PrepLounge

Bank envelope

Your client, Customlope, is the leader in the US secure envelope manufacturing industry. Banks buy these envelopes for operations such as money deposits and high value transactions. Next year, a new digital technology will reduce the overall number of units sold in the industry by 25%. In the short term, our client wants to maintain his current profit level without investing in the new technology. How can you help him?

4.5

65.7k times solved

Difficulty: Beginner

Candidate-led

Pricing

Profitability analysis

Open case

Case by

PrepLounge

Coffee pads

Your client is the CEO of Wiehle, a major household appliance manufacturer. It has been decided that a coffee machine should be added to the product line. The question is how this coffee machine should be designed: either to exclusively use Wiehle pads or to be compatible with the pads of existing third-party providers as well?

4.5

6.3k times solved

Difficulty: Intermediate

Interviewer-led

Growth strategy

Market entry

New product

Profitability analysis

Open case

Case by

PrepLounge

Fysikum

Your client, Fysikum, is an operator of squash centres in Sweden. The squash centres include sauna, spa, pool, gym and of course the squash courts. Due to the extreme success in Sweden the company is considering expanding to other countries of Europe, in particular Germany. Therefore they asked us to evaluate this possible expansion.

4.4

33.3k times solved

Difficulty: Intermediate

Interviewer-led

Market entry

Pricing

Open case

Company case provided by Company case by

SET Management Consulting

SET Case: Your own Management Consultancy

As one of three management consultants with many years of experience, you have SET yourself the goal of founding your own management consultancy. The topics, contents and solution offering with which you can advise and support potential customers are clear. The legal company is already founded and registered in the commercial register. Now you must pitch your business plan to the banks to get the necessary start-up financing! Especially the banks are interested in the underlying rationale of the SET Management Consulting business model. Your goal is to think of relevant financial KPIs and be prepared to explain the underlying revenue and cost streams in more detail.

4.4

20.7k times solved

Difficulty: Intermediate

Interviewer-led

Market entry

Profitability analysis

Open case

Company case provided by Company case by

BCG Platinion

BCG Platinion Case: ERP strategy & S/4HANA migration for “DekoKonzept”

Our client is the company “DekoKonzept”, which primarily sells home accessories and small furniture. DekoKonzept generates approximately €700M in revenue and operates mainly in Germany, with some presence in other European countries. The company is particularly represented through physical stores in major German cities and downtown areas but is also expanding its online shop significantly. A variety of outdated and often self-developed IT systems are currently used for core processes such as procurement, warehousing, and point-of-sale operations. DekoKonzept is also facing the challenge that its ERP system (SAP ECC 6.0) will soon no longer be officially supported by SAP. Therefore, they aim to migrate to the successor system SAP S/4HANA as soon as possible. This migration presents an opportunity to review, standardize, and harmonize many of the existing processes and systems. The next step is to further assess and evaluate the impact on costs, budget, and scope. Note: This case is interviewer-led. The cases in our interviews are more candidate-led. In this case, you take the lead and manage the entire case from start to finish. So be prepared for this when you apply to us.

4.2

11.1k times solved

Difficulty: Intermediate

Interviewer-led

Operations strategy

Open case

Expert case by

Xabi

Car rental market entry strategy

The client is CarRentalCo, a global car rental company present on the European and North American markets. In Europe, it is present in most EU countries but has not yet entered the Baltic countries. CarRentalCo has asked us to determine whether or not they should enter the Baltic (Estonia, Latvia and Lithuania being here considered as one market) and, if so, what should their entry strategy be.

4.4

11.1k times solved

Difficulty: Intermediate

Interviewer-led

Growth strategy

Market analysis

Market entry

Market sizing

Mergers & Acquisition

Operations strategy

Valuation

Open case

Expert case by

Francesco

Bain Case Style - Growth offensive at ChemCorp [NEW]

Your client is the Performance Chemicals division (revenues of $500 million) of a Specialty Chemicals Company with total revenues of $14 billion. The CEO wants the company to become the fastest-growing specialty chemicals company and has therefore asked all the divisions to present growth strategies to him. Accordingly, the client would like us to help them develop their division’s growth strategy.

4.3

9.2k times solved

Difficulty: Intermediate

Candidate-led

Growth strategy

Market analysis

Open case

Company case provided by Company case by

E.ON Inhouse Consulting

E.ON Inhouse Consulting Case: E-Mobility

Climate change has become one of the biggest challenges in the 21st century, and with roughly 75% of all CO₂ emissions coming from energy, this sector plays a key role in the transition to a reduced carbon footprint. E.ON has taken up on the challenge to promote more sustainable and efficient energy solutions throughout its whole customer spectrum. Correspondingly, a shift towards more sustainable energy consumption is noticed across the globe with many cities having set themselves ambitious climate targets, among those are: - Copenhagen -100% CO₂ emissions by 2025 - Amsterdam -60% CO₂ emission by 2030 - New York -40% CO₂ emissions by 2030 With E.ON focusing entirely on the “new” energy world, we have become the partner of choice for solutions propelling the energy transitions. Mr. Jensen, the mayor of Essen has come to E.ON requesting our help to accelerate the transition for his city. Essen is a city with about 600,000 inhabitants and prides itself as a forward-thinking one with lots of ambitions to become green itself. The economy is well and with his freshly won election the mayor looks forward to put its promised big initiatives into real projects.

3.6

15.7k times solved

Difficulty: Intermediate

Interviewer-led

Market analysis

Market entry

Market sizing

Profitability analysis

Open case

Expert case by

Deniz

CoffeeWorks reusable cups

CoffeeWorks is one of the leading coffee retail chains in the UK. The client is planning to introduce reusable cups with an aim to decrease the consumption of single-use disposable cups. The main goal of the client is to enhance their brand image as a sustainable retailer without harming current profitability levels. Thus, they approached us to check whether they should go ahead with their plan.

4.1

4.4k times solved

Difficulty: Advanced

Interviewer-led

Market analysis

Market entry

New product

Profitability analysis

Open case

Case by

PrepLounge

Inverto Case: Fast Dish Restaurant

Fast Dish, a publicly traded Quick Service Restaurant (Franchise) company with over €20 billion in revenue and more than 20.000 restaurants globally, has recently faced major challenges with regards to supply chain management and sustainability. The client's top management has engaged the SCM and procurement specialized consultancy Inverto to advise the company in this critical situation.

3.5

16.2k times solved

Difficulty: Intermediate

Interviewer-led

Operations strategy

Organizational behavior

Pricing

Profitability analysis

Open case

Company case provided by Company case by

Simon-Kucher

Simon Kucher Case: Unlocking Revenue at AlpenGlide

AlpenGlide is a well-known ski resort located in the Austrian Alps. Their revenues have stagnated over the recent years, and management is concerned that they are not capturing their full revenue potential. AlpenGlide has engaged Simon-Kucher to help understand what’s behind the stagnation and recommend actionable levers to unlock new revenue growth opportunities.

4.2

14.8k times solved

Difficulty: Beginner

Interviewer-led

Growth strategy

Market analysis

Pricing

Open case

Expert case by

Frederic

TrendWardrobe

Our client is TrendWardrobe (TW), a clothing retailer in the US. It offers a wide range of fashionable clothing and accessories for men, women, and children. TW operates 200 stores across the top 50 cities in the US. These stores are typically spacious and situated in suburban areas. Additionally, TW has a robust online presence through its website, trendwardrobe.com. However, in the past two years, TW has experienced declining revenue compared to its competitors. A thorough analysis conducted by the strategy team at TrendWardrobe has revealed a significant decrease in customer visits. This indicates a decline in the number of unique shoppers visiting TW stores or making online purchases. Recognizing the need to reverse this trend and drive revenue growth, TrendWardrobe is exploring various measures to boost its performance over the next two years. The challenge for TrendWardrobe is to identify strategies and initiatives that will accelerate revenue growth and enable the company to regain its competitive position. By implementing effective measures, TrendWardrobe aims to attract more customers, increase sales, and catch up with its competitors in the clothing retail industry.

4.8

1.9k times solved

Difficulty: Advanced

Interviewer-led

Competitive response

Growth strategy

Pricing

Open case

Case by

PrepLounge

Disguise distribution

Your client is a German manufacturer of disguises for events and parties called KostümCo. They segment their products in two lines: round-the-year and seasonal products. Round-the-year products serve customers that celebrate birthdays and common parties during the whole year. Seasonal products aim at special occasions like the carnival or the beer festival in Munich and are only sold for some time before these events. KostümCo makes the design, manufacturing and resells the disguises to retailers in 5 different German cities. Recently, though, the largest retail customer complained that KostümCo’s prices are too high. After some internal analyses, the client found this to be due mainly to distribution costs. You have been asked to figure out how we can reduce distribution costs.

4.4

38.5k times solved

Difficulty: Beginner

Candidate-led

Market analysis

Operations strategy

Profitability analysis

Open case

Expert case by

Hagen

Sprinker

Sprinker is a mid-sized, US-based publishing agency that develops, produces, and sells educational materials. It has come to their attention that some private schools are considering changing their first-grade textbooks, for which they would need a publishing agency. Sprinker is interested in participating in the closed tender and wants to determine whether this would be economically viable.

4.5

27.8k times solved

Difficulty: Beginner

Candidate-led

Competitive response

Growth strategy

Market analysis

Market entry

Market sizing

New product

Profitability analysis

Open case

Case by

PrepLounge

Europe Rail Tunnel

The airlines covering the Cologne to London route are facing a competitive threat from a new rail tunnel connecting Britain and Germany by train. Which all factors do you think the airlines should consider before reacting to this threat?

3.8

5.4k times solved

Difficulty: Beginner

Candidate-led

Competitive response

Market analysis

Open case

Company case provided by Company case by

EY-Parthenon

EY-Parthenon Case: Virtual Marketplace

A leading online real estate marketplace in Germany – your-new-home.com – is struggling with stagnating sales after many years of high growth rates. In a preliminary project with EY-Parthenon, the market environment has already been examined in detail – competitors, new entrants, customer needs, etc. As a result, you are asked to identify growth areas and quantify the potential sales uplift for the management.

4.3

85.6k times solved

Difficulty: Intermediate

Candidate-led

Growth strategy

Profitability analysis

Open case

Company case provided by Company case by

Simon-Kucher

Simon-Kucher Case: GST Cruise Company

Cruise company German Sea Tours (GST) is a successful operator of international cruises. GST currently offers several cruise trips, lasting between 5 and 24 days. Additional services can be booked on board (e.g. excursions at each destination, onboard leisure activities). Customers tend to book their tickets several months in advance. GST has had a long history of revenue growth, but in the past five years, it showed lower growth rates. Board members are not sure whether the market, in general, saw lower growth or whether the problem is specific to GST. GST recognizes that winning new customers and stimulating existing customers to book their vacations with GST is crucial for future growth and therefore has always focused on keeping a close relationship with its (potential) cruise-trip bookers. GST’s chief commercial officer (CCO) Ms. Brown has hired Simon-Kucher & Partners to assess the market environment and competitive positioning for cruise ships and to conduct a subsequent evaluation of potential growth options.

4.5

75.5k times solved

Difficulty: Intermediate

Candidate-led

Growth strategy

Pricing

Open case

How Business Sense Shows Up in Case Interviews

Your business sense won’t be tested directly – but it shows up in your thinking, your assumptions, and your recommendations. Here are five moments when it really counts:

5 tips on how to show business sense in case interviews

1. Define a clear objective.

Clarify what the company wants to achieve in the case. Is it short-term profit, long-term growth, or a stronger market position? A well-defined goal aligns your analysis and recommendations – and shows you understand the business context.

2. Develop sound hypotheses.

Top candidates derive economically plausible hypotheses. If revenue is dropping, explore potential causes like demand, pricing, or competitive pressure.

3. Evaluate actions realistically.

Go beyond theory. Consider real-world feasibility, conflicting objectives, and strategic risks. Instead of simply saying “raise prices,” consider price elasticity, customer segments, and likely competitor reactions.

4. Interpret numbers in the right context.

Numbers only make sense when interpreted correctly. High margins might signal a premium position – or upcoming competitive threats. Business sense means understanding what the numbers imply in context.

5. Make a well-founded recommendation.

Your final recommendation should be logical and economically viable. Acknowledge risks or gaps, and show that your solution could succeed in the real world.

How to Train Your Business Sense

Business sense isn’t innate – it’s a skill you can develop. The key is to build a solid understanding of economic principles and learn how real-world decisions are made.

Start by regularly reading business news. Outlets like New York Times, the Wall Street Journal or the Financial Times will help you get a feel for markets, business models, and strategic thinking. Go beyond the facts – try to understand the economic rationale behind each story.

When practicing case interviews, stay sharp and reflective. Ask yourself: Is my reasoning not only logical but also economically sound?

Mock interviews with peers are especially helpful. You’ll improve your communication skills and receive valuable feedback.

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Also, think like an entrepreneur in daily life. Observe companies, analyze new strategies, and reflect on what drives success or failure. The more often you go through this process, the sharper your business intuition becomes – and that’s what sets you apart in interviews.

Key Takeaways

Business sense is one of the most important success factors in both consulting and case interviews. It reflects your ability to quickly recognize economic patterns, form sound assumptions, and make realistic, client-oriented decisions. In interviews, what sets top candidates apart isn’t memorized theory but the ability to see the bigger picture: understanding what really matters to a business, prioritizing strategically, and proposing solutions that are both practical and value-driven.

To demonstrate your business sense, it’s crucial to clearly define the objective of the case, develop plausible hypotheses, assess potential actions not only analytically but also from a business standpoint, and interpret numbers within the correct context. Your final recommendation should be not just logical, but economically viable and well thought through.

The good news is that business sense can be learned. By regularly reading business news, reflecting on strategic decisions, working through case interviews critically, and actively seeking feedback, you’ll build a strong foundation in economic thinking. Over time, this mindset will not only boost your interview performance but also set you up for long-term success in consulting.

Let's Move On With the Next Articles:

Presentation and Communication

Consulting Skills & Preparation

The majority and the most obvious part of preparation is, of course, the substantive preparation for your case interview. However, you also need to present what you have learned in a way that gives your interviewer an impression of your personality and character. This means that you must appear confidentand communicate clearly and precisely. The best preparation is useless if you come across as closed-off and insecure. As a consultant, you must always appear trustworthy and confident when interacting with clients to be taken seriously and to enable you and your team to work in a solution-oriented manner. This is already tested in the case interview – albeit indirectly ;)

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General Knowledge

Consulting Skills & Preparation

In case interviews, having solid general knowledge can make a big difference, especially in market sizing questions. Knowing basic facts about regions, population sizes, and economic indicators helps you build stronger arguments. It’s not just about the analysis itself but also about showing interviewers that you understand global trends and can quickly process key information — an important skill in consulting. In a case interview, quick and accurate estimates are essential. For example, if you're asked to evaluate the potential market for a product in a specific country, having solid data — like the population size — is crucial. Without this information, it can be challenging to make a meaningful calculation. In addition to national market data, it's important to know about key global markets. Being familiar with major economic regions like the U.S., China, and the EU is valuable because large consulting firms such as McKinsey and BCG operate extensively in these areas. A solid understanding of these regions shows that you can think about global factors and helps you stand out from other candidates. What Your Knowledge of Population, Economy & Geography Says About You Having strong general knowledge in specific areas not only shows that you are well-prepared, but also that you can quickly understand economic relationships—a crucial skill in consulting. When you have information like population sizes or a country's Gross Domestic Product (GDP) at your fingertips, you can quickly verify assumptions and make informed decisions, which is exactly what case interviews expect. Additionally, your knowledge of these topics demonstrates a genuine interest in world affairs and your ability to recognize and understand global trends. This insight is vital for evaluating how political, economic, and social changes affect businesses. It also highlights your capability to absorb and use complex data effectively. Population Country/Region Population (approx.) Worldwide 8.05 billion China 1.426 billion India 1.419 billion Europe (EU states) 450 million USA 335 million Indonesia 277 million Brazil 203 million Russia 143 million Japan 124 million Germany 83 million UK 68 million GDP Forecast in USD for 2024 Country/Region GDP 2024 (approx. in trillions USD) Worldwide 105 trillion USD USA 25 trillion USD China 18 trillion USD Japan 4.3 trillion USD Germany 4.5 trillion USD France 3.0 trillion USD UK 3.1 trillion USD India 3.9 trillion USD Italy 2.2 trillion USD Brazil 2.1 trillion USD Canada 2.2 trillion USD Key Data to Know for Your Case Interview In case interviews, making quick and accurate estimates is key. A good grasp of units, along with basic fraction and percentage calculations, is essential for working efficiently. Additionally, being comfortable with time units is important for making rough estimates and calculations. The table of larger and smaller time units below provides a handy overview of commonly needed values. These fundamental skills help you tackle tasks confidently and quickly. Overview of Time Conversions: Days, Weeks and Hours Larger Units Smaller Units Days/Year 365 days (In leap years: 366 days) Days/3 Years 1,095 days Days/4 Years 1,461 days (including 1 leap year) Weeks/Year 52 weeks Hours/Week 168 hours Seconds/Hour 3,600 seconds Conversion of Fractions to Percentages and Decimal Values Fraction Percentage Decimal 1/5 20% 0.20 1/6 16.67% 0.1667 1/7 14.29% 0.1429 1/8 12.5% 0.125 1/9 11.11% 0.1111 1/10 10% 0.10 1/11 9.09% 0.0909 1/12 8.33% 0.0833 1/13 7.69% 0.0769 1/14 7.14% 0.0714 1/15 6.67% 0.0667 1/16 6.25% 0.0625 1/17 5.88% 0.0588 1/18 5.56% 0.0556 1/19 5.26% 0.0526 1/20 5% 0.05 Remember, it’s not enough to just memorize these numbers—you also need to be able to calculate with them effectively! Use our Mental Math Tool to specifically train your math skills and prepare for your next interview.

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Preparation Plan

Consulting Skills & Preparation

Preparing for a case interview can feel overwhelming, but having a structured plan will help you stay focused and make steady progress. A well-organized approach ensures you build a strong foundation, practice effectively, and refine your skills before the big day. In this guide, we will walk you through the key components of an effective practice plan, including self-study, peer practice, and working with a coach. Let’s go!

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