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Consulting Q&A – Ask Questions about Your Career

In this overview, you will find all the questions asked so far by the PrepLounge community. Anyone can ask questions and write answers. Our coaches are also happy to share their expertise. If you like an answer, give it an upvote so that it rises to the top.

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1 - 20 of 434 results

Estimate the number of whatsapp messages sent per day?

estimation guess-estimates Market sizing
Most recent answer on Mar 20, 2023
The best answer (on Apr 15, 2020) is from:
Clara
Expert
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut
Clara
Expert
 gave the best answer on Apr 15, 2020
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut
Hello PK, I have alredy answered to some of your questions regarding market sizing, they are truly interesting. I believe tought you always have the same flaw: you only consider one of the two big segments (person ... (read entire answer)
9
Answers
3.3 k
Views
47
Total Upvotes
on Mar 20, 2023 on Mar 20, 2023
Last Activity

Sizing : Nombre de bornes de recharge pour voitures électriques en France

cars Deloitte Monitor Electric Mobility Market sizing
Most recent answer on Mar 19, 2023
The best answer (on Mar 18, 2023) is from:
Ian
Expert
MBB | 100% personal interview success rate (8/8) and 95% candidate success rate | Personalized interview prep
Ian
Expert
 gave the best answer on Mar 18, 2023
MBB | 100% personal interview success rate (8/8) and 95% candidate success rate | Personalized interview prep
Oui, je sais le faire. Mais, il vaut mieux que vous le fassiez vous-même. Peu importe que on peut rechercher le chiffre. Le but est qu’on montre la capacité d’organiser, de décomposer, et de estimer une problème effecti ... (read entire answer)
3
Answers
101
Views
40
Total Upvotes
on Mar 19, 2023 on Mar 19, 2023
Last Activity

Market sizing resources

Market sizing
Most recent answer on Mar 16, 2023
The best answer (on Mar 04, 2023) is from:
Hagen
Expert
Ex-Bain and interviewer for 7+ years | >95% success rate | mentor and coach for 6+ years
Hagen
Expert
 gave the best answer on Mar 04, 2023
Ex-Bain and interviewer for 7+ years | >95% success rate | mentor and coach for 6+ years
Hi Zacharie, I think this is an interesting question that may be relevant for many people. I would be happy to share my thoughts on it: Personally, I feel that RocketBlocks is good preparation material for market size e ... (read entire answer)
4
Answers
152
Views
27
Total Upvotes
on Mar 16, 2023 on Mar 16, 2023
Last Activity

Market sizing, for case interviews vs working on an actual project

Case Interview Market sizing
Most recent answer on Mar 14, 2023
The best answer (on Mar 13, 2023) is from:
Hagen
Expert
Ex-Bain and interviewer for 7+ years | >95% success rate | mentor and coach for 6+ years
Hagen
Expert
 gave the best answer on Mar 13, 2023
Ex-Bain and interviewer for 7+ years | >95% success rate | mentor and coach for 6+ years
Hi there, I think this is an interesting question that may be relevant for many people. I would be happy to share my thoughts on it: First of all, it really depends on the individual approach of every candidate. While t ... (read entire answer)
5
Answers
117
Views
40
Total Upvotes
on Mar 14, 2023 on Mar 14, 2023
Last Activity

# coffee sold in the university coffee shop

Market sizing
Most recent answer on Feb 15, 2023
The best answer (on Feb 15, 2023) is from:
Hagen
Expert
Ex-Bain and interviewer for 7+ years | >95% success rate | mentor and coach for 6+ years
Hagen
Expert
 gave the best answer on Feb 15, 2023
Ex-Bain and interviewer for 7+ years | >95% success rate | mentor and coach for 6+ years
Hi Alnur, I would be happy to share my thoughts on it: From my perspective, approaching this market size estimation top-down isn't meaningful. Instead, I would advise you to approach it bottom-up by estimating the numbe ... (read entire answer)
3
Answers
145
Views
24
Total Upvotes
on Feb 15, 2023 on Feb 15, 2023
Last Activity

Market sizing question - sheep

Market sizing
Most recent answer on Feb 14, 2023
The best answer (on Feb 14, 2023) is from:
Ian
Expert
MBB | 100% personal interview success rate (8/8) and 95% candidate success rate | Personalized interview prep
Ian
Expert
 gave the best answer on Feb 14, 2023
MBB | 100% personal interview success rate (8/8) and 95% candidate success rate | Personalized interview prep
Hi Alnur, You'll learn a lot more from this by trying it out yourself first! Why don't you post your approach here and we can provide commentary? How to approach market sizing It's very simple: Do the approach the is th ... (read entire answer)
5
Answers
216
Views
37
Total Upvotes
on Feb 14, 2023 on Feb 14, 2023
Last Activity

Market Sizing less common now in MBB?

Market sizing
Most recent answer on Feb 13, 2023
The best answer (on Feb 13, 2023) is from:
Cristian
Expert
#1 McK Coach by rating & recommendation rate| Honest feedback: no sugar-coating | Success stories ➨ tinyurl.com/43rkxa8f
Cristian
Expert
 gave the best answer on Feb 13, 2023
#1 McK Coach by rating & recommendation rate| Honest feedback: no sugar-coating | Success stories ➨ tinyurl.com/43rkxa8f
Hi there,  Yes, I would say so.  A few years ago market sizing questions were very popular. Two of my four interviews actually included one. Now I barely hear MBB candidates getting them in the interviews, and usually w ... (read entire answer)
7
Answers
230
Views
46
Total Upvotes
on Feb 13, 2023 on Feb 13, 2023
Last Activity

Bottom Up Market Analysis

Market analysis Market sizing
Most recent answer on Feb 01, 2023
The best answer (on Feb 01, 2023) is from:
Hagen
Expert
Ex-Bain and interviewer for 7+ years | >95% success rate | mentor and coach for 6+ years
Hagen
Expert
 gave the best answer on Feb 01, 2023
Ex-Bain and interviewer for 7+ years | >95% success rate | mentor and coach for 6+ years
Hi Adam, I think this is an interesting question that may be relevant for many people. I would be happy to share my thoughts on it: Unfortunately, a bottom-up approach may not be the most appropriate method for this spe ... (read entire answer)
4
Answers
187
Views
28
Total Upvotes
on Feb 01, 2023 on Feb 01, 2023
Last Activity

Case study: consulting offer or ownership stake

case study Market sizing
Most recent answer on Jan 31, 2023
The best answer (on Jan 31, 2023) is from:
Rushabh
CoachingPlus Expert
BCG Expert | #1 in Middle East | 100+ Mocks Delivered | IESE & NYU MBA | Ex-KPMG Dxb Consultant
Rushabh
CoachingPlus Expert
 gave the best answer on Jan 31, 2023
BCG Expert | #1 in Middle East | 100+ Mocks Delivered | IESE & NYU MBA | Ex-KPMG Dxb Consultant
Hello Jonas, That's a fun question! Yes I would say a quantitative + qualitative analysis sounds great. In your quantitative, essentially they want you to value the business. Starting with a market sizing exercise, movi ... (read entire answer)
7
Answers
159
Views
44
Total Upvotes
on Jan 31, 2023 on Jan 31, 2023
Last Activity

Market Sizing - How to practice?

Market sizing
Most recent answer on Jan 18, 2023
The best answer (on Jan 18, 2023) is from:
Hagen
Expert
Ex-Bain and interviewer for 7+ years | >95% success rate | mentor and coach for 6+ years
Hagen
Expert
 gave the best answer on Jan 18, 2023
Ex-Bain and interviewer for 7+ years | >95% success rate | mentor and coach for 6+ years
Hi there, I think this is an interesting question that may be relevant for many people. I would be happy to share my thoughts on it: Practicing market sizing can help you improve your skills and increase your confidence ... (read entire answer)
4
Answers
283
Views
50
Total Upvotes
on Jan 18, 2023 on Jan 18, 2023
Last Activity

Market sizing case: how many petrol stations are there in the US?

Case case study Market sizing
Question edited on Dec 24, 2022
The best answer (on May 12, 2017) is from:
Deniz
Expert
BCG | Kearney | 350+ trainees | 5+ years of experience in London, Dubai and Istanbul
Deniz
Expert
 gave the best answer on May 12, 2017
BCG | Kearney | 350+ trainees | 5+ years of experience in London, Dubai and Istanbul
Hi Anonymous, As mentioned earlier, there are many different ways one can approach this problem. I typically approach this following way: 1. What is the total demand for gas stations? 2. What is the demand for one ... (read entire answer)
5
Answers
49.9 k
Views
44
Total Upvotes
on Dec 24, 2022 on Dec 24, 2022
Last Activity

Market sizing questions

case question Interviewer Market sizing
Most recent answer on Dec 22, 2022
The best answer (on Nov 19, 2022) is from:
Pedro
Expert
Bain | EY-Parthenon | Roland Berger |Former Head Recruiter | Market Sizing
Pedro
Expert
 gave the best answer on Nov 19, 2022
Bain | EY-Parthenon | Roland Berger |Former Head Recruiter | Market Sizing
When you finish your market sizing you should: 1. Check if the result makes sense. More important than not making calculation mistakes is the ability to sense if a number “feels” right or wrong. It can “feel” wrong eith ... (read entire answer)
8
Answers
334
Views
47
Total Upvotes
on Dec 22, 2022 on Dec 22, 2022
Last Activity

How do you calculate the market size of the Food Delivery Service industry?

Case Interview Guesstimate Market sizing
Recent activity on Dec 13, 2022
Anonymous gave the best answer on Apr 25, 2019
Hi Wibi, We are happy to provide you feedback on your solutions. Would you want to try your best solution first? Happy to improve it together. Best Serhat
4
Answers
18.2 k
Views
19
Total Upvotes
on Dec 13, 2022 on Dec 13, 2022
Last Activity

Total Market vs Total Addressable Market

Exhibit Guessestimation Market sizing
Most recent answer on Dec 05, 2022
The best answer (on Dec 03, 2022) is from:
Emre
Expert
Incoming Bain Consultant | INSEAD MBA | 5 years of consulting and 3 years of entrepreneurship| 50% discount available
Emre
Expert
 gave the best answer on Dec 03, 2022
Incoming Bain Consultant | INSEAD MBA | 5 years of consulting and 3 years of entrepreneurship| 50% discount available
As I was preparing/presenting pitch decks to the investors for our startup, there were only 3 terms about the market size: 1- TAM (Total Addressable Market): The maximum size for an opportunity 2- SAM (Serviceable Addre ... (read entire answer)
4
Answers
277
Views
20
Total Upvotes
on Dec 05, 2022 on Dec 05, 2022
Last Activity

Estimating the % of people who make 1-off purchases in a single year

Market sizing
Most recent answer on Dec 05, 2022
The best answer (on Dec 05, 2022) is from:
Ian
Expert
MBB | 100% personal interview success rate (8/8) and 95% candidate success rate | Personalized interview prep
Ian
Expert
 gave the best answer on Dec 05, 2022
MBB | 100% personal interview success rate (8/8) and 95% candidate success rate | Personalized interview prep
Hi there, This is a replacement rate type question! As in, if we're doing the car market, we would need to assume an average person replaces their car every x years (let's say 10). We then divide the total # by 10 to ge ... (read entire answer)
2
Answers
169
Views
10
Total Upvotes
on Dec 05, 2022 on Dec 05, 2022
Last Activity

Estimating commercial side of market

Guessestimation Market sizing
Most recent answer on Nov 28, 2022
The best answer (on Nov 28, 2022) is from:
Ankit
Expert
BCG I Strategy& I 12+ years of professional experience
Ankit
Expert
 gave the best answer on Nov 28, 2022
BCG I Strategy& I 12+ years of professional experience
Hi  Well, to answer the first part of your question - never ignore the segment if it is one of the drivers for the market sizing. Make sure you highlight it as part of your initial structure and clarify with the intervi ... (read entire answer)
3
Answers
260
Views
12
Total Upvotes
on Nov 28, 2022 on Nov 28, 2022
Last Activity

Problem with a market sizing question ("How many chicken farms are there in the world?")

Market sizing
Most recent answer on Nov 19, 2022
The best answer (on Nov 19, 2022) is from:
Pedro
Expert
Bain | EY-Parthenon | Roland Berger |Former Head Recruiter | Market Sizing
Pedro
Expert
 gave the best answer on Nov 19, 2022
Bain | EY-Parthenon | Roland Berger |Former Head Recruiter | Market Sizing
This is the typical market sizing question that combines demand side and supply side approach. You did great on the demand side. Simple and to the point. Yes, you could make it more sophisticated (segments, etc.). I wou ... (read entire answer)
4
Answers
271
Views
26
Total Upvotes
on Nov 19, 2022 on Nov 19, 2022
Last Activity

What are The best resources to prepare for Market Sizing questions?

Market sizing MBB
Recent activity on Oct 23, 2022
The best answer (on Oct 17, 2022) is from:
Cristian
Expert
#1 McK Coach by rating & recommendation rate| Honest feedback: no sugar-coating | Success stories ➨ tinyurl.com/43rkxa8f
Cristian
Expert
 gave the best answer on Oct 17, 2022
#1 McK Coach by rating & recommendation rate| Honest feedback: no sugar-coating | Success stories ➨ tinyurl.com/43rkxa8f
Hi there,  It makes sense to be a bit stressed about market sizing questions. They're quite common and the bread and butter of consultants. I actually received a market sizing questions as my final interview with McKins ... (read entire answer)
5
Answers
376
Views
16
Total Upvotes
on Oct 23, 2022 on Oct 23, 2022
Last Activity

Market sizing case questions

Market sizing
Most recent answer on Oct 19, 2022
The best answer (on Oct 11, 2022) is from:
Pedro
Expert
Bain | EY-Parthenon | Roland Berger |Former Head Recruiter | Market Sizing
Pedro
Expert
 gave the best answer on Oct 11, 2022
Bain | EY-Parthenon | Roland Berger |Former Head Recruiter | Market Sizing
You have to be 80-20 there. Other answers are suggesting using a % on top of domestic/consumer, but what you should actually do is to find the industry that uses most TV screens (e.g. Food Service) and then using a % on ... (read entire answer)
4
Answers
369
Views
24
Total Upvotes
on Oct 19, 2022 on Oct 19, 2022
Last Activity

has anyone taken the Oliver Wyman Case competition? Do you have any cases with solutions or any other material that can be useful for the case?

M&A Market sizing Oliver Wyman Oliver Wyman interview oliverwyman
Most recent answer on Oct 06, 2022
The best answer (on Oct 06, 2022) is from:
Mario
Expert
Ex-Mckinsey (analyst->associate->manager) and now in tech (Bytedance) + Part time interview coach and mentor
Mario
Expert
 gave the best answer on Oct 06, 2022
Ex-Mckinsey (analyst->associate->manager) and now in tech (Bytedance) + Part time interview coach and mentor
I'm familiar with these competitions. Please feel free to reach out directly.   Mario
1
Answer
4.8 k
Views
2
Total Upvotes
on Oct 06, 2022 on Oct 06, 2022
Last Activity
1 - 20 of 434 results
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