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.
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BCG Final Round: Stadium Naming Rights
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 very long and is meant for learning casing skills. If you intend to use it for mock practice then focus on very specific segments to complete it in time.Also check out the video solution at the bottom of this page for a step-by-step work-along and detailed explanantion
Bain + BCG - Hot Wheels WITH VIDEO SOLUTION
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.========================================================To get a deep-dive explanation of the case leadership behind this case, please read this article: Candidate-Led Cases: What to Expect With Example CasesThis case is part one of a series. The goal of this series is to demonstrate how an identical case prompt (and corresponding framework) could lead to multiple different outcomes. The goal is to train you to adjust to case information in an agile and adaptable way.The 2nd part of the series can be found here:Case - BCG Hot Wheels Part 2 With Video Solution
BCG - YodaPhone
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 and ensure the digitization program is delivered as planned.=====================================================Framework can be found here: YodaPhone Optimal Framework Solutions (https://drive.google.com/file/d/10ENFb2z3gB4Uyc5_-iC4s8ssA-BBQyE3/view)
Practice Cases with Peers That Are Currently Looking for Interview Partners.
MBB - Sky China
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 hemorrhaging cash and surive in the short-term. They are also looking to see how the current situation can be viewed as an opportunity, and what can be done to prepare for the future.
BCG Platinion/McK Digital/Monitor - Experienced Hire Tech Practice - Roma Solutions
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 looking at a company called Roma, which is one of the leaders in the space.What are your thoughts here?You can clarify the following (if asked)iBPMS - Intelligent business process management suites. Think SAP for example. They are IT systems that take users through business processes.The business model of these Tech firms is primarily to find ways to integrate diverse offerings/capabilities to build better products and ecosystems. Therefore, technical synergies are important here.The market is fairly competitive with about a dozen players.Roma is a market leader in this space, vying for 1st against 2 competitors. The top 3 dominate the market.
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 technologyThat we are looking for total taxis NOT taxis at any given time. We would like an estimate of the size of the fleetManhattan is 1 of 5 boroughs in NYC
BCG - US Supply Chain Crisis
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 find solutions to resolve the supply chain crisis and avoid further economic losses.Clarifying Information The client’s objective is to resolve the supply chain crisis and ensure the smooth operation of the supply chain to avoid further economic lossesThe client’s focus is on the West Coast ports, particularly the Port of Los AngelesThe client is open to exploring various options to resolve the supply chain crisis.
StyleScape responds to customer feedback (McKinsey final round)
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 nationwide, and its online platform is relatively new, having launched only two years ago.Despite healthy growth, the company's leadership has noticed an alarming decline in customer satisfaction ratings and an increase in customer complaints. They are concerned that these issues will harm the company's reputation and negatively impact its bottom line. The CEO of Style Scape has requested your assistance in determining the root causes of these issues and developing recommendations to address them.
McKinsey - Pharma Pipeline
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 processes and reduce costs without compromising the quality and safety of their products. How would you approach identifying the main drivers of these increased costs and extended timelines?
Baby Formula
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 and their children was introduced, which provides vouchers to purchase baby formula.The client is interested in bidding for the tender contracts but needs help in determining the appropriate bidding price.
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Russell University - Fresh Attacker on the Online Education Market (McKinsey 1st round)
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 expand their reach, the university has recently begun offering three online postgraduate qualifications. Despite the quality of teaching and effort spent in developing these courses, the response from students in terms of sign-up rates has been modest. Russel University executives believe they are acting too slowly since other prestigious universities, particularly in the US, have successfully leveraged their brand to offer short and affordable online courses to a variety of people. Russell University has hired us to determine whether they should acquire Eduline, a well-established platform that offers STEM-related short courses to its subscribers. The university intends to use Eduline to offer courses on a subscription basis and will then issue online certificates to individuals who successfully complete its courses.
MBB - Climate Change Operations
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 reputational risks associated with these events. The company's leadership team has asked your consulting firm to help them understand the risks they face and develop a plan to mitigate those risks.Clarifying Info:Our client’s objective is to maintain long-term profitabilityOur client’s factories are located throughout the US===================================================Note: Once you have solved this case, make sure to solve the 2nd version of this case: MBB - Climate Change Operations - Part 2 | PrepLounge.comThis case is designed to show you how a case can evolve/change based on new information. The first half of this case is the same, but diverges once data and #s are provided.To learn more about how to use case leadership to navigate dynamic cases, please read here: Candidate-Led Cases: What to Expect With Example Cases
Hara Coffee Co's innovative coffee subscription model
Our client, Hara Coffee Company, is a large coffee chain with over 200 locations in the United Kingdom. They import beans from numerous regions and batch-roast them in the UK, offering customers a vast selection of premium blends. In addition to serving delicious coffee, our client offers freshly made sandwiches, pastries, and salads of the highest quality. Hara Coffee Co. is also one of the most socially and environmentally responsible coffee brands in the United Kingdom, and their value proposition heavily relies on customers paying a premium for delicious products that do not compromise on sustainability metrics.The rising cost of living has significantly reduced the revenue of coffee chains throughout the United Kingdom over the past year. People are increasingly choosing to brew their own coffee at home, with beans delivered by subscription. The CEO of Hara Coffee Company is intrigued by the expansion of coffee subscription models in the UK. They requested that our team investigate whether their chain could also introduce a coffee subscription model, in which customers pay a fixed monthly fee and receive a certain number of coffees throughout the month.
GlowMobile Goes Digital (McKinsey first-round)
GlowMobile is a leading telecom operator with a strong presence in Southeast Asia. They sell regular products and services that any telecom operator would offer in their retail stores: cell phones, SIM cards, subscriptions, etc.Even though the number of digital customers in the region has grown exponentially, currently GlowMobile does not have an online presence and customers must go in person to retail stores for every interaction with the operator. In the past years, they have been losing a lot of customers due to bad customer experience.GlowMobile has asked our team to improve customer satisfaction through digitization. Specifically, they want us to help improve and digitize their operations and prepare a proof of concept for a digital customer journey for customers.The CEO believes that opening their digital channel would minimize the loss of customers due to bad customer experience and solidify their position as market leader. Right now, a digital journey does not exist.
The Jaywalking Case
The Government of Spain has tasked the City of Barcelona to increase their revenue generated from the City.Thus, in order to generate more revenue, the Local Government of Barcelona has engaged our firm to examine the viability of passing a new law imposing a fine on jaywalking violations.How should we approach this?
McKinsey 1st Round Case - Party Burger
Our client is Party Burger, a restaurant chain in the US serving premium burgers and salads for lunch. They rely on the quality of their products to attract customers, and they are usually fully booked. However, reviews have pointed out that the service offered could be improved. Our client is concerned this could impact their sustainability long term.
MBB 1st Round Case - Hazella Light
Our client is an Italian multinational manufacturer of branded chocolate and confectionery products. One of their most popular products is Hazella, a hazelnut spread.Despite its worldwide popularity, Hazella is considered to be high in calories by some customers. For this reason, our client has developed a new version of the spread, Hazella Light, and is assessing whether they should launch it in the Italian market.
BCG Final Round Case - Sugar to Indonesia
Our client is an Indian sugar producer exporting solely to Indonesia. Indonesia imports 5m tons of raw sugar per year.To make raw sugar, our client processes sugarcane at a cost of $25 per ton and they have a capacity of 1.5m tons per year. The only competitor that has lower production costs is from Thailand, and it delivers 1.7m tons per year at a cost of $20 per ton.Our client recently found out that the Thai producer will expand its production to 2m tons, and as a consequence the market price for sugar in Indonesia may drop.They contacted us to assess this situation.
Kearney First Round Case - Top Chemicals
Our client is the US-based biotech company Top Chemicals. They have just developed a fertilizer that is waiting to get approval for commercialization. They hired us to identify the best price for it.
Bain/BCG - Hunger Warriors
Our client is Hunger Warriors, a non-profit with ambitions to solve world hunger. While approximately one tenth of the human population goes to bed hungry, Hunger Warriors aims to bring this number to zero. One of their primary initiatives is to reduce food waste, which represents $1.5 Trillion in lost value per year. They have tasked us with identifying the major sources of food waste and determining the best course of action to reduce this. Clarifying questions:You can think of them as similar to the WHO or the UN in their scope and reachAll options are on the table to reduce food wasteWe do not have a set budget = this is dependent on the donations and funding we are able to get
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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.
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.
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.
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.
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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.