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Expert case by Ian
Style:
Our client is Korean Car Parts (KCP), a multi-national original equipment manufacturer (OEM) of car parts based in Korea. They've recently seen a decline in profits and have brought us in to understand how to address this falling profitability.====================================
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Our client is Korean Car Parts (KCP), a multi-national original equipment manufacturer (OEM) of car parts based in Korea. They've recently seen a decline in profits and have b
...
(Open whole case)
5.5k
Times solved
Beginner
Difficulty
Expert case by Cristian
Style:
Our client, Soy Technologies specializes in soy production and processing.The client harvests their soybean crops and processes the soybeans to extract the protein and create soybean meals that are later used for animal feed.Since the demand for soy protein has been steadily increasing in recent yea
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Our client, Soy Technologies specializes in soy production and processing.The client harvests their soybean crops and processes the soybeans to extract the protein and create soybean meals t
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(Open whole case)
6.4k
Times solved
Advanced
Difficulty
Expert case by Cristian
Our client, Element Mobile (EM), is the largest German telecommunications provider, with an impressive supply chain comprised of dozens of suppliers, six distribution centres, and hundreds of stores. EM offers a variety of products to its 20 million customers, including sim cards, broadband, phones,
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Our client, Element Mobile (EM), is the largest German telecommunications provider, with an impressive supply chain comprised of dozens of suppliers, six distribution centres, and hundreds o
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(Open whole case)
5.3k
Times solved
Intermediate
Difficulty
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Expert case by Cristian
Assume our client is CodeWave, a large software development firm headquartered in Silicon Valley. The company has a solid reputation in the tech industry and has been in operation for over 15 years. Codewave currently employs approximately 3,000 people and has rapidly expanded in recent years.
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Assume our client is CodeWave, a large software development firm headquartered in Silicon Valley. The company has a solid reputation in the tech industry and has been in operation for over 1
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(Open whole case)
1.0k
Times solved
Intermediate
Difficulty
Expert case by Frederic
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, T
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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 th
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(Open whole case)
700+
Times solved
Advanced
Difficulty
Expert case by Agrim
Style:
Our client is NeuBank, a neobank in the US. A soccer stadium in Ohio is offering exclusive naming rights, and NeuBank is considering bidding for them. The client wants to understand the following:If this is a good idea?How much they should bid?How to make the deal a win-win?NOTE that this case is ve
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Our client is NeuBank, a neobank in the US. A soccer stadium in Ohio is offering exclusive naming rights, and NeuBank is considering bidding for them. The client wants to understand the foll
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(Open whole case)
1.3k
Times solved
Intermediate
Difficulty
Expert case by Ian
Style:
Problem definition: Our client is Korean Car Parts (KCP), a multi-national original equipment manufacturer (OEM) of car parts based in Korea. They've recently seen a decline in profits and have brought us in to understand how to address this falling profitability.==========================
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Problem definition: Our client is Korean Car Parts (KCP), a multi-national original equipment manufacturer (OEM) of car parts based in Korea. They've recently seen a decline in pro
...
(Open whole case)
11.3k
Times solved
Intermediate
Difficulty
Expert case by Ian
Style:
Our client is Yoda's Phones, a national telecommunications company. They have embarked on a three-year, multi-million dollar digitization program. Unfortunately, two years into the program, they realize they are significantly behind schedule and over budget.You have been brought in to right the ship
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Our client is Yoda's Phones, a national telecommunications company. They have embarked on a three-year, multi-million dollar digitization program. Unfortunately, two years into the program,
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(Open whole case)
9.8k
Times solved
Intermediate
Difficulty
Expert case by Ian
Style:
Sky China, a government-backed Chinese airline, has recently seen profits plummet due to COVID-19. Profits are down 80% in the months of February and March, but are showing early signs of a rebound in April. They've brought you in to first investigate what can be done immediatedly to prevent he
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Sky China, a government-backed Chinese airline, has recently seen profits plummet due to COVID-19. Profits are down 80% in the months of February and March, but are showing early signs of a
...
(Open whole case)
7.5k
Times solved
Intermediate
Difficulty
Expert case by Ian
Style:
Our client is Energy England, one of northern England’s largest electric utility companies. They were created over the past decade through an aggressive series of mergers of existing utility companies each specializing in a single energy generation source.Recently, the CEO has embarked on an initiat
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Our client is Energy England, one of northern England’s largest electric utility companies. They were created over the past decade through an aggressive series of mergers of existing utility
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(Open whole case)
7.3k
Times solved
Intermediate
Difficulty
Expert case by Ian
Style:
Let’s say we’re working with a large Tech company (i.e. FB, Apple, Microsoft etc.). They are interested in getting into the low-code iBPMS space. This is a space where pseudo-code is used to deploy large-scale process-based IT applications rapidly (in months, not years).In particular, they’re lookin
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Let’s say we’re working with a large Tech company (i.e. FB, Apple, Microsoft etc.). They are interested in getting into the low-code iBPMS space. This is a space where pseudo-code is used to
...
(Open whole case)
5.5k
Times solved
Intermediate
Difficulty
Expert case by Ian
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 cand
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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
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(Open whole case)
5.0k
Times solved
Intermediate
Difficulty
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Expert case by Cristian
Our client is Green Life, a digital challenger bank based in Europe. The bank operates solely online and offers its clients a variety of current accounts, insurance, and financial products. Green Life currently operates in 10 different EU countries and employs approximately 500 people. Due to i
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Our client is Green Life, a digital challenger bank based in Europe. The bank operates solely online and offers its clients a variety of current accounts, insurance, and financial products.
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(Open whole case)
1.4k
Times solved
Advanced
Difficulty
Expert case by Ian
Style:
Prompt The United States is currently facing a major supply chain crisis due to long ship queues and wait times at its West Coast ports, particularly at the Port of Los Angeles. Docks are at maximum capacity, and the system is at a breaking point. The government has reached out to you to help f
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Prompt The United States is currently facing a major supply chain crisis due to long ship queues and wait times at its West Coast ports, particularly at the Port of Los Angeles. Docks a
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(Open whole case)
1.1k
Times solved
Beginner
Difficulty
Expert case by Cristian
Style Scape is a mid-sized retailer that sells clothing, accessories, and home goods through its physical stores and online platform. The business has been around for over a decade and has seen consistent growth in sales in its home market of the United States. Style Scape operates 30 stores nationw
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Style Scape is a mid-sized retailer that sells clothing, accessories, and home goods through its physical stores and online platform. The business has been around for over a decade and has s
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(Open whole case)
700+
Times solved
Advanced
Difficulty
Expert case by Ian
Your client is a leading pharmaceutical company that is facing challenges with increasing pipeline costs and longer development timelines for their drug candidates. The company has multiple drug candidates in various stages of development and are looking for innovative strategies to streamline their
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Your client is a leading pharmaceutical company that is facing challenges with increasing pipeline costs and longer development timelines for their drug candidates. The company has multiple
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(Open whole case)
1.2k
Times solved
Intermediate
Difficulty
Expert case by Hagen
Style:
GroceryWholesaleCo is a leading international grocery wholesaler that sells, markets, and distributes food products, equipment, and supplies to restaurants, healthcare and educational facilities, lodging establishments, and other customers who prepare meals away from home. Historically, the client w
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GroceryWholesaleCo is a leading international grocery wholesaler that sells, markets, and distributes food products, equipment, and supplies to restaurants, healthcare and educational facili
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(Open whole case)
12.5k
Times solved
Intermediate
Difficulty
Expert case by Hagen
Style:
BabyformulaCo is a leading producer of baby formula with a 30% market share in the US that is looking for ways to increase their market share without significantly lowering profitability. Recently, a Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) for low-income women a
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BabyformulaCo is a leading producer of baby formula with a 30% market share in the US that is looking for ways to increase their market share without significantly lowering profitability. Re
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(Open whole case)
16.3k
Times solved
Intermediate
Difficulty
Expert case by Cristian
Russell University, located in the United Kingdom, is one of the oldest and most prestigious universities in the world. They have been educating students for more than two centuries and provide a variety of undergraduate and graduate STEM-focused courses. In an effort to increase revenues and e
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Russell University, located in the United Kingdom, is one of the oldest and most prestigious universities in the world. They have been educating students for more than two centuries and prov
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(Open whole case)
2.0k
Times solved
Beginner
Difficulty
Expert case by Ian
Style:
A mid-sized manufacturing company is concerned about the potential impacts of climate change on its operations. The company has a number of factories located in coastal regions that are vulnerable to flooding and other weather-related events, and it is concerned about the potential financial and rep
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A mid-sized manufacturing company is concerned about the potential impacts of climate change on its operations. The company has a number of factories located in coastal regions that are vuln
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(Open whole case)
2.2k
Times solved
Intermediate
Difficulty
Any Open Questions Left? Check Out Our FAQ
What are cases?
Cases, also known as case studies, are business problems that a candidate is presented with during a case interview at a management consultancy. The challenge is to solve it under pressure and in a structured way.
Why are consulting cases so important for your preparation?
Consulting interviews are among the most competitive and difficult job interviews that exist. Interviewers use cases as an indicator to test whether you have what it takes to become a successful consultant. In order to pass, you need to ace the case interview part. And in order to ace the case interview part, you need to be well-prepared. Thus, practicing cases is one of the most important aspects of interview preparation in consulting. During different rounds of interviews you will have to solve cases again and again to prove your structured and analytical thinking as well as your communication skills.
How can I practice cases?
You can practice cases on your own and go through them to get a first feeling for the structure. Afterwards, you should go into a real interview environment and practice cases with other members on the platform. You will find more than 50 mock-interview requests on the Meeting Board every day, which you can easily accept. If there is nothing suitable on the Meeting Board, you can also use the Candidate Listing. Here you can find active members on the platform and send them a direct meeting request. If you want to take your case practice to the next level, we recommend you to schedule coaching sessions with our coaches who have many years of experience in helping candidates receive their dream job offer.
What is the difference between Candidate-led and Interviewer-led?
In an interviewer-led case interview, the interviewer leads through the conversation. This means that the interviewer asks specific questions and also controls the time you have to analyze and answer different questions and therefore the depth of your analysis. In contrast, the candidate-led style (which is more common) is about you taking the initiative as a candidate. The initial problem is given to you by your interviewer. Afterwards, you have the freedom to structure the case according to your ideas and to ask questions proactively in order to find a solution to the problem.
What are real cases?
Real cases in the PrepLounge Case Library are cases that were submitted by management consultancies and have been treated as such within the company. They were made available from the real interview process. In this way, you can gain deep insights into the requirements of the case interview with the respective top consultancies (e.g. Bain & Company, Roland Berger, Deloitte, Oliver Wyman). We have marked these cases with the corresponding company logo.
What are expert cases?
Expert cases were created by our PrepLounge coaches and either contain real problems that the experts have already dealt with in their lives as consultants or cases from actual consulting interviews they took part in. They offer you an optimal preparation through the different subjects, levels of difficulty and styles. And the best thing is: If you have questions about the cases, you can ask them directly to the authors.
What are video case solutions?
Video case solutions are cases in which we provide you with a solution that includes a YouTube video. With this we want to help you to understand case solutions even better.
What does the rating of the cases mean?
Every member has the possibility to rate a case and leave feedback on the case. This gives you the opportunity to call up a ranking and solve the cases that are particularly popular in the community. It also gives us the opportunity to continuously improve our cases in order to provide you with the best possible practice material.
Which are the most interesting cases on PrepLounge?
Which cases are most interesting for you depends on your personal preference and your level of knowledge. If you are just starting with the case interview preparation, beginner cases are probably the most interesting ones for you. You also have the possibility to filter by different categories, such as personal fit, market analysis or brain teaser and many more, in order to address exactly the topics that are most relevant for your application.
Practice Case Interviews - Browse Our Extensive Case Library
Invite other candidates for a meeting to crack the case interactively or solve it on your own. If you like to check your case approach just have a look at the given sample solution.
A Vast Selection of Management Consulting Cases
Our selection of case studies mirror the wide variety in real case interviews. Thus, you can solve challenging problems around market sizing, market-entry, pricing, or operations strategy. Moreover, all provided cases are marked with a level of difficulty and the respective case style. This will allow you to filter for interviewer-led (as used by McKinsey) and candidate-led cases. In addition, some of our corporate partners granted some great original cases that have been used in real interviews. Check them out to get some authentic insights about the real application process of top firms like Bain, Roland Berger, and many more. These cases are clearly indicated by the firm's logo.