Consulting Consulting
Back to overview

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.
 

 

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.

Company case provided by Company case by
E.ON Inhouse Consulting
E.ON Inhouse Consulting Case: Heating Systems
The European Union pursues the target of lowering the CO₂ emissions of their residents. Therefore, the EU introduced a CO₂ tax to create incentives for consumers to switch to more climate friendly alternatives and stabilize carbon dioxide emissions. Accordingly, and as E.ON’s strategy focuses on creating a better tomorrow for its customers, E.ON is investing significantly to grow its ‘Customer solutions’ area with climate-friendly solutions, including its heating solutions business. You have recently joined E.ON Inhouse Consulting and E.ON’s Head of Heating Solutions has hired you to conduct an analysis concerning the European CO₂ tax. Specifically, you are asked to assess whether the EU uses the right tool to steer consumers towards more climate-friendly heating systems.
4.4
4.9k times solved
Difficulty: Intermediate
Interviewer-led
Market analysis
Company case provided by Company case by
Bain & Company
Bain Case: Old Winery
You have inherited the “Old Winery” from your grandfather, a winery that has been family-owned for five generations and can be dated back to the 16th century. Half of the eleven hectares are used to grow white grapes, the other half to grow red grapes. They are grown in a conventional way, i.e. they are not organically farmed and certified. The vine stocks are in a good condition regarding age and care. Overall, the only ¼ of the harvest is made into wine by the winery itself; the rest is sold. Your grandfather never wanted to change the image of the winery and left the managerial and administrative task to a young and energetic wine-maker. Due to the not so well-known brand, the demand for the “Old Winery” wine is currently rather low. You do not intent to run the winery operatively, given your limited knowledge of winemaking, but find the idea of owning a winery exciting.
4.3
150.0k times solved
Difficulty: Intermediate
Candidate-led
Growth strategy
Market analysis
Market sizing
Mergers & Acquisition
Company case provided by Company case by
RSM Ebner Stolz Management Consultants
RSM Ebner Stolz Case: Noch zu retten?
Sie werden vom Management der mittelständischen Packaging-Group gebeten, eine Einschätzung zur wirtschaftlichen Lage des Konzerns abzugeben. Im Rahmen der Analyse der operativen Ergebnisse der Auslandswerke soll das Werk identifiziert werden, bei dem der aktuell größte Handlungsbedarf besteht. Davon ausgehend sollen Optionen erarbeitet und bewertet werden, die der Kandidat dem Management im Umgang mit diesem Auslandswerk empfehlen würde und was ggf. auf Basis der Analyse für Rückschlüsse hinsichtlich der Konzernzahlen gezogen werden können.
3.0
12.8k times solved
Difficulty: Intermediate
Interviewer-led
Operations strategy
Profitability analysis
Expert case by
Ian
Based on Bain 1st Round Case (2023): Last Mile Delivery
A startup company specializing in last mile delivery with drones is determined to reach $20M in revenue while also becoming profitable. The company's innovation lies in leveraging drone technology to revolutionize the logistics sector, specifically focusing on last-mile delivery, which accounts for a significant portion of shipping costs. However, the firm has to overcome numerous challenges including technological, regulatory, and logistical issues associated with both urban and rural environments. As the next strategic step, the company is considering pilot launches in two different environments - city and suburb - and is uncertain about which option to choose. You have been engaged to evaluate these options, considering the profitability, revenue potential, and strategic implications of each, and provide a recommendation to the company's leadership team.
4.6
5.6k times solved
Difficulty: Advanced
Interviewer-led
Brain teaser
Growth strategy
Market analysis
Market entry
Market sizing
New product
Operations strategy
Pricing
Profitability analysis
Company case provided by Company case by
BCG Platinion
BCG Platinion Case: Digital transformation of an entire corporation
The CIO of a major insurance company needs your support to renew the company's IT landscape as a starting point for their digital transformation. The IT landscape of the client is highly fragmented and integrated. Most IT applications are "legacy" monolithic custom developments (running on Mainframe) and are hosted on-premise. There are issues with stability and scalability of applications plus IT costs are ever increasing "Time-to-market" to release new functionalities is too high, due to constraints of current architecture. You are asked to quickly assess the status quo, identify main areas of intervention and measures to address the pain points and renew the IT landscape. 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.
3.9
27.1k times solved
Difficulty: Advanced
Interviewer-led
Digital transformation
Market analysis
Operations strategy
Case by
PrepLounge
Fire & Water Remediation Services
We are a profitable American provider of fire and water remediation services. We are generally hired by insurance companies to provide cleaning services in the wake of burning and flooding damages. We we would like your counsel on whether to enter the growing USA traditional residential cleaning market or not. Traditional housecleaning usually takes place 2-3 times per month.
4.3
8.5k times solved
Difficulty: Intermediate
Candidate-led
Market analysis
Market entry
Market sizing
New product
Company case provided by Company case by
Bain & Company
Bain Case: BeautyCo – Where Did the Profits Go?
Our client BeautyCo is a large European perfumery company with 500 shops across Europe. However, BeautyCo has been struggling with a decrease in profitability for some time and would like to work with us to understand what the causes and possible actions could be. Therefore, as a first step the client wants us to identify the cause of the profitability issues.
4.6
69.8k times solved
Difficulty: Intermediate
Candidate-led
Market analysis
Profitability analysis
Expert case by
Benjamin
McKinsey Round 1: Homeware Heaven
Our client is Homeware Heaven. They are a homeware and appliance retailer that sells items such as kitchen appliances (fridges, ovens), kitchenware, lighting, bedding and bath products, home decor etc. They have 100 stores in the top 20 cities in the US. Their stores are large stand-alone stores located outside of the city centre. Over the last 3 years, business has not been going well for our client. Their revenue has been declining year over year and they have had fewer unique shoppers in their stores. They have hired McKinsey to help them turnaround the situation
4.8
1.3k times solved
Difficulty: Advanced
Interviewer-led
Growth strategy
Profitability analysis
Case by
PrepLounge
Inverto Case: FashionForward’s Sourcing Shake-up
FashionForward is a mid-sized, private-label fashion retailer headquartered in Europe with €600 million in annual revenue. Its product portfolio includes fast-fashion collections for men and women, sold in 220 stores across six countries, and online. The company currently sources approximately 85% of its total production volume from Bangladesh, heavily relying on just three key suppliers for over 70% of that volume. Their procurement strategy is highly cost-driven, and supplier relationships are transactional. FashionForward has now asked Inverto to develop a new sourcing strategy. Over the last 18 months, FashionForward has faced increasing procurement challenges: - A drop in demand for trend-sensitive fashion categories - Long lead times (up to 40 days), limiting reactivity to seasonal trends - Repeated shipping delays and FX volatility from Banglades - Overstocking in basics and stockouts of fashion-forward items - ESG non-compliance flagged in two factories during an audit - Growing pressure from the board to increase agility and reduce dependency on Bangladesh
4.4
10.5k times solved
Difficulty: Intermediate
Interviewer-led
Market analysis
Operations strategy
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
16.1k times solved
Difficulty: Intermediate
Interviewer-led
Operations strategy
Organizational behavior
Pricing
Profitability analysis
Expert case by
Benjamin
MBB Unconventional Case: Coral Reefs
Your client is the Government of Indonesia, specifically a joint committee formed between a few key ministries including the Ministry of Marine Affairs & Fisheries, Ministry of Tourism and Ministry of Environment & Forestry. Indonesia is one of the largest developing countries in the world, with a population of about 285M people and an average monthly income of only USD 500. Located in Southeast Asia, Indonesia is actually a vast archipelago comprised of 17,000 islands, giving it one of the longest and most complex coastlines in the world. It is also part of the Coral Triangle, an area demarcated by scientists as the global epicenter of marine diversity. Your client tells you that Indonesia's once pristine coral reefs have seen a rapid decline over the past decade. They have come to you for help and want to figure out what is causing the problem.
5.0
1.2k times solved
Difficulty: Advanced
Candidate-led
Non-conventional
Public sector
Expert case by
Ian
MBB - Taxis in Manhattan
An entrepreneur has come to you looking to disrupt the taxi industry in NYC. They are interested in determining the number of taxis in Manhattan, in order to understand how large their fleet would need to be to compete. How would you go about determining how many taxis exist in Manhattan? If the candidate asks, you may clarify the following: - This is pre ride-hailing technology - That we are looking for total taxis NOT taxis at any given time. We would like an estimate of the size of the fleet - Manhattan is 1 of 5 boroughs in NYC
3.5
6.2k times solved
Difficulty: Intermediate
Interviewer-led
Brain teaser
Market entry
Market sizing
Company case provided by Company case by
SET Management Consulting
SET Case: Strategische Neuausrichtung der Fröhlich Maschinen GmbH
Die Fröhlich Maschinen GmbH, ein mittelständisches Unternehmen mit Sitz in Deutschland, ist auf die Produktion von Spezialmaschinen für die Automobilindustrie spezialisiert. Das Unternehmen hat in den letzten fünf Jahren seinen Umsatz kontinuierlich gesteigert, jedoch ist die Profitabilität stark zurückgegangen. Die Gewinnmarge vor Steuern liegt bei nur 3,75 %, was deutlich unter dem Branchendurchschnitt von 8 % liegt. Gleichzeitig steht das Unternehmen vor internen und externen Herausforderungen: - Interne Herausforderungen: Ein veraltetes ERP-System führt zu ineffizienten Prozessen in der Produktion und Verwaltung. Zudem gibt es Hinweise auf eine unvorteilhafte Kostenstruktur und mangelnde Transparenz bei der Produktprofitabilität. - Externe Herausforderungen: Steigende Rohstoffpreise und ein intensiverer Wettbewerb setzen die Margen zusätzlich unter Druck. Einige Wettbewerber bieten ähnliche Produkte zu niedrigeren Preisen an und diversifizieren schneller in neue Branchen. Die Geschäftsführung hat Ihre Boutique-Beratung beauftragt, die Ursachen für die sinkende Profitabilität zu analysieren und konkrete Maßnahmen zur Verbesserung der Wettbewerbsfähigkeit vorzuschlagen. Ziel Analysieren Sie die Ursachen für die sinkende Profitabilität der Fröhlich Maschinen GmbH und entwickeln Sie konkrete Maßnahmen, um die Rentabilität und Effizienz langfristig zu steigern.
4.4
2.2k times solved
Difficulty: Intermediate
Interviewer-led
Restructuring
Case by
PrepLounge
McKinsey Case: Digital & Vegan Restaurant Franchise
Our client is a European venture capital firm. They are potentially interested in investing into a new restaurant franchise player from Austria, called “VegDigi”. VegDigi has just 3 corporate restaurants in Vienna and no franchisees, yet, but their business model is considered innovative for a restaurant industry, and is based on 3 pillars: - Proprietary IT system – VegDigi’s team has developed their own IT system (which manages all restaurant processes – from cashier desk and employee schedules to inventory management and delivery). - Innovative vegan menu – VegDigi offers fresh, whole-foods vegan menu, which differentiates itself from the rest of the fast food offering in taste and quality. VegDigi puts a lot of focus on its foods being healthy. - Transparent business practices and processes – VegDigi prouds itself to be a transparent business, meaning they publish all their data and talk about their success and failures openly online. Our client has engaged us to help them to determine whether or not to make an investment into the VegDigi.
4.6
28.0k times solved
Difficulty: Intermediate
Interviewer-led
Market entry
Pricing
Valuation
Expert case by
Giulia
MBB Case – Consulting a Government
Our client is the government of an imaginary country which is suffering from strong protests and riots by its own population. The client would like to understand the reason for these protests. In a second step, the client wants you to make suggestions for improvement to end these protests. In answering those two questions, what factors would you consider in making your potential recommendation?
4.5
10.7k times solved
Difficulty: Advanced
Candidate-led
Brain teaser
Market analysis
Operations strategy
Organizational behavior
Public sector
Case by
PrepLounge
Besser fliegen
Du berätst eine große europäische Fluggesellschaft. Der Vorstandsvorsitzende überlegt, eine neue Sitzklassen-Kategorie, die „Premium Economy“, zwischen der Economy und der First Class einzuführen. Er will von Dir wissen, ob dies eine gute Idee ist.
4.6
11.1k times solved
Difficulty: Advanced
Interviewer-led
New product
Operations strategy
Pricing
Profitability analysis
Company case provided by Company case by
thyssenkrupp Management Consulting
tkMC Case: Market entry strategy in the lithium materials trade market
Your client tk Commodity Trade (tk ComT) is a global materials trader - they buy and sell raw materials. tk ComT had stable EBITDA margins in recent years. They consider expanding their target market and entering the Lithium (electric vehicle battery grade) trade, due to the current high demand for electric cars and Lithium-ion batteries. The client is concerned about minimizing the cash spending and about improving the payback period for this market-entry campaign, due to corporate cash policy. As a consultant, you are expected to calculate the size of the Lithium market and to assess the payback periods for an organic market entry (with own resources) as well as for the acquisition of an established company. Finally, the client expects a proposal about the best market entry strategy and potential opportunities and risks.
4.0
30.5k times solved
Difficulty: Intermediate
Interviewer-led
Market entry
New product
Profitability analysis
Company case provided by Company case by
Forvis Mazars
Forvis Mazars Case: Prüfung der Carvermietungen GmbH
Sie sind Abschlussprüfer der CarVermietungen GmbH, einem deutschen Unternehmen, das geleaste Fahrzeuge europaweit an Privat- und Geschäftskunden weitervermietet. Im Rahmen der Prüfung führen Sie Interviews mit dem Management des Unternehmens durch. Dabei wecken insbesondere die langfristigen ökologischen und digitalen Herausforderungen der Firma Ihr Interesse. Sie erfahren unter anderem, dass die Hauptunterschiede zum üblichen Geschäft in einem Transformationsplan liegen und lassen sich vom CFO den Plan vorstellen. Die Finanzdirektorin teilt Ihnen stolz mit, dass die CarVermietungen GmbH in die Elektrifizierung der Fahrzeugflotte investiert. Die Anzahl der Elektroautos wird im Lagebericht veröffentlicht. Die CarVermietungen GmbH bietet ihren Kunden seit dem vierten Quartal eine Erweiterung zum bestehenden Bonusprogramm an. Die Kunden können ihre gesammelten Bonuspunkte am Jahresende auf ein Umweltprogramm übertragen, das vorwiegend in den Anbau von Bäumen und Wasseralgen investiert, um die klimafreundliche CO2-Bindung zu fördern. In diesem Zusammenhang hat das Unternehmen auch eine weitere Zielgruppe definiert und eine entsprechende Kundenliste erstellt. Darüber hinaus wurden im laufenden Geschäftsjahr durch den Zukauf von Daten über ein soziales Netzwerk zusätzlich neue Kunden hinzugewonnen. Die CarVermietungen GmbH hat im letzten Quartal außerdem in P2P-Carsharing investiert, da sich dieses neue Geschäftsmodell im Ausland bereits als vielversprechend erwiesen hat. Private Autobesitzer haben die Möglichkeit, ihr Fahrzeug über die Carsharing-Plattform anzubieten und die Vermietung gänzlich über eine App abzuwickeln. Die Mietwagengebühren betragen ein Drittel des Mietwertes und die CarVermietungen GmbH zahlt eine Versicherung, die jeden Kunden abdeckt. Die Versicherungsprämien für das Folgejahr wurden bereits ausgezahlt.
4.0
9.0k times solved
Difficulty: Intermediate
Interviewer-led
Audit
Valuation
Case by
PrepLounge
Top Apparel
Our client is Top Apparel. They own a portfolio of 15 brands of fashion. Historic growth has been in line with the market and the company is making good profits. Now management wants to invest money to grow the portfolio, but they are unsure on how to prioritize investment. The client has asked us to help them determine which brands should get investments for future growth.
4.0
5.8k times solved
Difficulty: Intermediate
Candidate-led
Growth strategy
Case by
PrepLounge
Was machen wir mit der Datenflut?
Dein Kunde ist ein großer Automobilkonzern. Dieser erhält eine große Menge an Daten von den verkauften Autos. Er möchte von Dir wissen, welche Möglichkeiten er hat, diese Daten zu monetarisieren.
4.3
4.0k times solved
Difficulty: Intermediate
Interviewer-led
New product
Operations strategy
Profitability analysis

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 demandpricing, 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 threatsBusiness 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 marketsbusiness 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.

👉 Use our Meeting Board to find peers and practice together.

Sep 21
06:30 - 08:00 AM
Advanced
71% Reliability
English, French
Novice, Advanced, Pro
Sep 21
08:00 - 09:30 AM
Advanced
68% Reliability
English
Advanced, Pro
Profile picture of Junhuang
Sep 21
11:00 AM - 12:30 PM
Pro
91% Reliability
English
Pro
Sep 21
12:00 - 01:30 PM
Advanced
92% Reliability
English
Advanced, Pro
Sep 21
12:00 - 01:30 PM
Novice
100% Reliability
English
Novice, Advanced, Pro
Sep 21
03:00 - 04:30 PM
Advanced
100% Reliability
English
Advanced, Pro
Sep 21
08:00 - 09:30 PM
Advanced
68% Reliability
English
Advanced, Pro
Sep 22
12:30 - 02:00 AM
Advanced
100% Reliability
English
Advanced, Pro
Sep 22
01:30 - 03:00 AM
Pro
81% Reliability
English, German
Advanced, Pro
Sep 22
06:00 - 07:30 AM
Pro
94% Reliability
English
Advanced, Pro
You did not find the right meeting?
Find more meeting invitations on our meeting board and post your own suggestion.

👉  Want to take it a step further? Connect with our experienced coaches.

Coach ALEXANDRE intro video. Visit their profile to find more information in text.
ALEXANDRE
USD 169 / h
5.0
35 Coachings
FREE INTRO I exMcKinsey EM I exKearney consultant I High Success Rate I Official Coach for HEC (160 coachees in 2022/23)
Coach Pedro intro video. Visit their profile to find more information in text.
Pedro
USD 199 / h
5.0
208 Coachings
BAIN | EY-Parthenon | Roland Berger | Former Principal | FIT & PEI Expert
Coach Giulia intro video. Visit their profile to find more information in text.
Giulia
USD 189 / h
5.0
91 Coachings
McKinsey | 6+ years in Consulting + Health Tech |Certified High Performance + Systemic Coach | Women Empowerment
Coach Maxim intro video. Visit their profile to find more information in text.
Maxim
USD 279 / h
5.0
13 Coachings
Ex-Bain Senior Manager in Dubai | Interviewed 150+ candidates | 5 promotions
Coach Annika intro video. Visit their profile to find more information in text.
Annika
USD 179 / h
5.0
64 Coachings
10% off first session | ex-Bain | MBB Coach | ICF Coach | HEC Paris MBA | 13+ years experience
Coach Alberto intro video. Visit their profile to find more information in text.
Alberto
USD 699 / h
5.0
306 Coachings
Ex-McKinsey AP | Professional MBB Coach | +13yrs experience | +2,000 real interviews | +150 offers
Coach Ian intro video. Visit their profile to find more information in text.
Ian
USD 399 / h
5.0
1,180 Coachings
Ex-BCG | NYU Stern | MBB, Tech, & Strategy Coach | 5,000+ Sessions | 500+ Offers | 1,000+ Candidates | 100+ Countries
Coach Irene intro video. Visit their profile to find more information in text.
Irene
USD 149 / h
5.0
9 Coachings
BCG consultant & MIT MBA | Supported 20+ students for MBBs or MBA
Coach Zoe intro video. Visit their profile to find more information in text.
Zoe
USD 149 / h
0.0
0 Coachings
Former BCG Associate | 50% off first case interview prep diagnostic call

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 ;)
To the article
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.
To the article
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!
To the article