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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. Here you can also find our guidelines and FAQs for the Consulting Q&A.

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Guesstimates

Market sizing MBB
Most recent answer on Apr 11, 2024
The best answer (on Apr 11, 2024) is from:
Pedro
Expert
30% off in April 2024 | Bain | EY-Parthenon | Roland Berger | Market Sizing | DARDEN MBA
Pedro
Expert
 gave the best answer on Apr 11, 2024
30% off in April 2024 | Bain | EY-Parthenon | Roland Berger | Market Sizing | DARDEN MBA
Revenue = Market Size * Market Share Market share = Revenue / Market Size
2
Answers
76
Views
16
Total Upvotes
on Apr 11, 2024 on Apr 11, 2024
Last Activity

Market Sizing: Volume Versus Value

estimate estimation estimation market sizing estimations Market sizing market sizing assumptions Market Sizing Beginner Level
Most recent answer on Apr 09, 2024
The best answer (on Apr 09, 2024) is from:
Pedro
Expert
30% off in April 2024 | Bain | EY-Parthenon | Roland Berger | Market Sizing | DARDEN MBA
Pedro
Expert
 gave the best answer on Apr 09, 2024
30% off in April 2024 | Bain | EY-Parthenon | Roland Berger | Market Sizing | DARDEN MBA
Depends on pricing structure: If there's only one price, then it's just multiplying the volume by the price. Done.  If there are multiple prices, then you have to find a way to multiply those prices by their respective ... (read entire answer)
3
Answers
71
Views
29
Total Upvotes
on Apr 09, 2024 on Apr 09, 2024
Last Activity

Estimate the number of whatsapp messages sent per day?

estimation guess-estimates Market sizing
Most recent answer on Apr 08, 2024
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)
20
Answers
5.1 k
Views
105
Total Upvotes
on Apr 08, 2024 on Apr 08, 2024
Last Activity

Market Sizing

estimate estimation estimation market sizing estimations Market sizing
Most recent answer on Apr 04, 2024
The best answer (on Apr 04, 2024) is from:
Ian
Expert
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Ian
Expert
 gave the best answer on Apr 04, 2024
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Nope! Exactly why you need clarifying questions :) Amount consumed = liters $ consumed = $ amount of all liters consumed Market = consumed AND exported MINUS imported…i.e. produced Be careful :) Answer: Population broke ... (read entire answer)
3
Answers
84
Views
28
Total Upvotes
on Apr 04, 2024 on Apr 04, 2024
Last Activity

BCG Final Round Market Sizing

BCG Market sizing
Most recent answer on Apr 02, 2024
The best answer (on Apr 02, 2024) is from:
Ian
Expert
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Ian
Expert
 gave the best answer on Apr 02, 2024
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi there, Population broken down into household (how people shop for groceries) broken down into income brackets split into frequency of purchase times purchase value (higher income has higher frequency + purchase value ... (read entire answer)
3
Answers
129
Views
34
Total Upvotes
on Apr 02, 2024 on Apr 02, 2024
Last Activity

Market Sizing: How would you approach this case?

estimation market sizing Market sizing Market Sizing Beginner Level marketsizing
Question edited on Apr 02, 2024
The best answer (on Apr 02, 2024) is from:
Ian
Expert
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Ian
Expert
 gave the best answer on Apr 02, 2024
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi there, 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? Market Sizing Analysis: Approaches, Techniques, and Exercises Market Sizi ... (read entire answer)
4
Answers
1.5 k
Views
57
Total Upvotes
on Apr 02, 2024 on Apr 02, 2024
Last Activity

Some problem in market sizing

Market sizing
Most recent answer on Mar 15, 2024
The best answer (on Mar 14, 2024) is from:
Pedro
Expert
30% off in April 2024 | Bain | EY-Parthenon | Roland Berger | Market Sizing | DARDEN MBA
Pedro
Expert
 gave the best answer on Mar 14, 2024
30% off in April 2024 | Bain | EY-Parthenon | Roland Berger | Market Sizing | DARDEN MBA
Sorry to tell you, there are plenty of mistakes in there. If you want to segment between large renovation and small renovation, treat each of these as a segment (i.e. estimate separately the total renovation value for e ... (read entire answer)
3
Answers
150
Views
37
Total Upvotes
on Mar 15, 2024 on Mar 15, 2024
Last Activity

ME first round market sizing case

1st round Bain & Company Market sizing MBB Middle East
Most recent answer on Mar 07, 2024
The best answer (on Feb 03, 2024) is from:
Ian
Expert
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Ian
Expert
 gave the best answer on Feb 03, 2024
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi there, 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? Hint: This is a bottom-up market sizing (think about how much you could m ... (read entire answer)
6
Answers
299
Views
56
Total Upvotes
on Mar 07, 2024 on Mar 07, 2024
Last Activity

Final round BCG visiting associate

anxiety BCG BCG Case Interview Final Round Market sizing
Most recent answer on Feb 29, 2024
The best answer (on Feb 23, 2024) is from:
Petros
Expert
BCG consultant, ex-Goldman Sachs | Free Intro Session! | personalized preparation plan | >90% candidate success rate
Petros
Expert
 gave the best answer on Feb 23, 2024
BCG consultant, ex-Goldman Sachs | Free Intro Session! | personalized preparation plan | >90% candidate success rate
Even though no one can know for certain until you receive a formal response, very rarely a BCG consultant would make the laptop joke unless they really mean it :) they know how important these interviews are for people, ... (read entire answer)
10
Answers
309
Views
100
Total Upvotes
on Feb 29, 2024 on Feb 29, 2024
Last Activity

Market Sizing - Demad Vs. Supply Side

Market sizing
Most recent answer on Feb 20, 2024
The best answer (on Jan 21, 2024) is from:
Ian
Expert
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Ian
Expert
 gave the best answer on Jan 21, 2024
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
You're exactly right! And, the same logic goes for top-down versus bottom up. Here are some you can practice on (with video explanations!): Market Sizing WITH SOLUTION - Coffee Shop Revenue | PrepLounge.com Market Sizin ... (read entire answer)
5
Answers
265
Views
53
Total Upvotes
on Feb 20, 2024 on Feb 20, 2024
Last Activity

Market sizing - Luxury market

Market sizing
Most recent answer on Jan 17, 2024
The best answer (on Jan 15, 2024) is from:
Edoardo
Expert
Bain & Co | PE & VC | I helped 50+ professionals to break into consulting and reason on their next career steps!
Edoardo
Expert
 gave the best answer on Jan 15, 2024
Bain & Co | PE & VC | I helped 50+ professionals to break into consulting and reason on their next career steps!
Honestly this is quite broad of a sizing and not something I usually hear of. Usually if you are applying to a consulting firm pretty strong on a vertical or if you are interviewing with a partner of a specific vertical ... (read entire answer)
5
Answers
332
Views
59
Total Upvotes
on Jan 17, 2024 on Jan 17, 2024
Last Activity

Bottom Up Market Sizing: SAAS, Start-Ups, Tech Space

BCG McKinsey and Bain case interview preparation Market sizing
Most recent answer on Jan 15, 2024
The best answer (on Jan 14, 2024) is from:
Brad
Expert
Expert coach | Head of recruiting for Bain | 8+ years interviewing | Free intro call
Brad
Expert
 gave the best answer on Jan 14, 2024
Expert coach | Head of recruiting for Bain | 8+ years interviewing | Free intro call
Hi there,   Stating the somewhat obvious but there is no single strategy for these type of things but let me start by framing how top-down and bottom-up works.   Top-down starts with a whole, big market, and you gradual ... (read entire answer)
4
Answers
305
Views
48
Total Upvotes
on Jan 15, 2024 on Jan 15, 2024
Last Activity

Got this market sizing question at MBB interview and was thrown off

BCG McKinsey and Bain Market sizing
Most recent answer on Jan 13, 2024
The best answer (on Jan 08, 2024) is from:
Gero
Expert
Ex-BCG │200+ Interviews & Interview Coachings @ BCG │ 20+ candidates coached into MBB │WHU/LSE/Nova │ Teacher & Trainer
Gero
Expert
 gave the best answer on Jan 08, 2024
Ex-BCG │200+ Interviews & Interview Coachings @ BCG │ 20+ candidates coached into MBB │WHU/LSE/Nova │ Teacher & Trainer
Hey there, A great example for learning how to approach any market sizing question step by step. Let‘s get to work! General comments In this case, I would propose a supply side estimation. Going over the demand side wou ... (read entire answer)
5
Answers
397
Views
77
Total Upvotes
on Jan 13, 2024 on Jan 13, 2024
Last Activity

How many Starbucks stores are in the US? Market Sizing

market estimation Market sizing
Question edited on Jan 04, 2024
The best answer (on Jan 04, 2024) is from:
Pedro
Expert
30% off in April 2024 | Bain | EY-Parthenon | Roland Berger | Market Sizing | DARDEN MBA
Pedro
Expert
 gave the best answer on Jan 04, 2024
30% off in April 2024 | Bain | EY-Parthenon | Roland Berger | Market Sizing | DARDEN MBA
Using this approach or not depends on whether you need something quickly vs. having a full interview focused on market sizing. Here's the quick approach (for a quick estimation, or to quickly test an estimation you have ... (read entire answer)
2
Answers
4.0 k
Views
35
Total Upvotes
on Jan 04, 2024 on Jan 04, 2024
Last Activity

Market sizing from demand or supply side

Market sizing
Most recent answer on Nov 19, 2023
The best answer (on Nov 19, 2023) is from:
Ian
Expert
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Ian
Expert
 gave the best answer on Nov 19, 2023
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
When you're estimating NOT guessing. If you're doing any approach and you're making up numbers, then it's the wrong approach! It's very simple: Do the approach the is the easiest for you given the question. Are they ask ... (read entire answer)
4
Answers
8.2 k
Views
11
Total Upvotes
on Nov 19, 2023 on Nov 19, 2023
Last Activity

Market sizing - number of EVs

Market sizing
Most recent answer on Nov 06, 2023
The best answer (on Nov 04, 2023) is from:
Ian
Expert
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Ian
Expert
 gave the best answer on Nov 04, 2023
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi there, Two Approaches: Approach 1: Take a % of the end number of people who own cars total, and say that percent drive EV (can use real numbers that you know…which you should know because you're doing daily reading!) ... (read entire answer)
5
Answers
586
Views
47
Total Upvotes
on Nov 06, 2023 on Nov 06, 2023
Last Activity

Top Down vs Bottom Up (Estimations)

estimation Market sizing
Most recent answer on Nov 06, 2023
The best answer (on Nov 01, 2023) is from:
Sidi
Expert
McKinsey Senior EM & BCG Consultant | Interviewer at McK & BCG for 7 years | Coached 350+ candidates secure MBB offers
Sidi
Expert
 gave the best answer on Nov 01, 2023
McKinsey Senior EM & BCG Consultant | Interviewer at McK & BCG for 7 years | Coached 350+ candidates secure MBB offers
Hello! The top-down method for market sizing is typically quicker and provides a general estimate promptly. However, it's often not as precise as the bottom-up approach.  In a real consultancy setting, the top-down meth ... (read entire answer)
7
Answers
557
Views
62
Total Upvotes
on Nov 06, 2023 on Nov 06, 2023
Last Activity

Market Sizing Case Interview -- What's Involved?

Case Interview consulting Market analysis Market sizing
Most recent answer on Oct 24, 2023
The best answer (on Oct 20, 2023) is from:
Hagen
Expert
#1 Bain coach | >95% success rate | interviewer for 8+ years | mentor and coach for 7+ years
Hagen
Expert
 gave the best answer on Oct 20, 2023
#1 Bain coach | >95% success rate | interviewer for 8+ years | mentor and coach for 7+ years
Hi there, First of all, congratulations on the progress in the application process with the consulting firm thus far! I would be happy to share my thoughts on your question: First of all, and contrary to what other coac ... (read entire answer)
7
Answers
563
Views
67
Total Upvotes
on Oct 24, 2023 on Oct 24, 2023
Last Activity

Size of the second hand car market in the US

market estimation market size Market sizing
Most recent answer on Oct 17, 2023
The best answer (on Oct 17, 2023) is from:
Raj
Expert
FREE 15MIN CONSULTATION | #1 Strategy& / OW coach | >70 5* reviews |90% offers ⇨ prep-success.super.site | MENA, DE, UK
Raj
Expert
 gave the best answer on Oct 17, 2023
FREE 15MIN CONSULTATION | #1 Strategy& / OW coach | >70 5* reviews |90% offers ⇨ prep-success.super.site | MENA, DE, UK
Define the market scope: Clarify whether you are referring to the entire second-hand car market or a specific segment, such as passenger cars or commercial vehicles. Identify key variables: Total population: Determine t ... (read entire answer)
4
Answers
1.1 k
Views
52
Total Upvotes
on Oct 17, 2023 on Oct 17, 2023
Last Activity

Help with a market sizing question: How many assistant nurses are there in Sweden?

market size Market sizing
Most recent answer on Oct 17, 2023
The best answer (on Oct 17, 2023) is from:
Raj
Expert
FREE 15MIN CONSULTATION | #1 Strategy& / OW coach | >70 5* reviews |90% offers ⇨ prep-success.super.site | MENA, DE, UK
Raj
Expert
 gave the best answer on Oct 17, 2023
FREE 15MIN CONSULTATION | #1 Strategy& / OW coach | >70 5* reviews |90% offers ⇨ prep-success.super.site | MENA, DE, UK
Here's a suggested approach: Define the key variables: Population: The population in Sweden is 10 million. Age range for assistant nurses: Determine the age range for individuals who typically work as assistant nurses. ... (read entire answer)
5
Answers
332
Views
42
Total Upvotes
on Oct 17, 2023 on Oct 17, 2023
Last Activity
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