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.

How does the Consulting Q&A work?

Anyone can ask a question
Anyone can write an answer
Upvotes let answers rise to the top
Sort by
Last Activity
Newest question
Newest answer
Answer upvotes
Most views
Most relevant
Limit Selection
Answered
Your Tag Subscriptions

Answer 1,2,3

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Jan 09, 2024
The best answer (on Jan 09, 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 09, 2024
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi Yiqing, In a candidate-led case, the interviewee needs to solve the case themselves. They have to create a strong framework and demonstrate strong case leadership to drive the case forward effectively and reach the a ... (read entire answer)
1
Answer
148
Views
12
Total Upvotes
on Jan 09, 2024 on Jan 09, 2024
Last Activity

Keep stable profit margin

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Oct 31, 2023
The best answer (on Oct 30, 2023) is from:
Cristian
Expert
#1 rated MBB & McKinsey Coach
Cristian
Expert
gave the best answer on Oct 30, 2023
#1 rated MBB & McKinsey Coach
Victoria, happy to help but I struggle to understand the question for now. Can you provide more details as to what you don't understand?  Also, adding here a resource for common terms that show up in case interviews. Mi ... (read entire answer)
3
Answers
321
Views
10
Total Upvotes
on Oct 31, 2023 on Oct 31, 2023
Last Activity

Difference between effective vs base price

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Jul 01, 2023
The best answer (on Jun 30, 2023) is from:
Cristian
Expert
#1 rated MBB & McKinsey Coach
Cristian
Expert
gave the best answer on Jun 30, 2023
#1 rated MBB & McKinsey Coach
Hi there,  If you ever saw an ad for a car, the price that they show you there is the base price.  Go talk to the dealer and all of a sudden you have other costs to worry about. What you'll end up paying is the effectiv ... (read entire answer)
5
Answers
734
Views
49
Total Upvotes
on Jul 01, 2023 on Jul 01, 2023
Last Activity

II. Analysis - 2. What could be possible reasons? - b) Idea 2: Cooperation with energy provider

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Jul 01, 2023
The best answer (on Jun 30, 2023) 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 Jun 30, 2023
30% off in April 2024 | Bain | EY-Parthenon | Roland Berger | Market Sizing | DARDEN MBA
You are correct in your statement. I should highlight, however, that the answer provided in the case is not necessarily correct. There are a lot of things that are being erroneously disregarded: Not considering time-val ... (read entire answer)
3
Answers
424
Views
11
Total Upvotes
on Jul 01, 2023 on Jul 01, 2023
Last Activity

II. Analysis - 2. What could be possible reasons? - a) Idea 1: Battery warranty

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Jul 01, 2023
The best answer (on Jul 01, 2023) is from:
Andi
Expert
BCG 1st & Final Round interviewer | Personalized prep with >95% success rate | 7yrs coaching | #1 for Experienced Hires
Andi
Expert
gave the best answer on Jul 01, 2023
BCG 1st & Final Round interviewer | Personalized prep with >95% success rate | 7yrs coaching | #1 for Experienced Hires
Hi there, the company wants to cover the cost of such warranty. To do so, they calculate the Expected Cost, which is a function of  the cost per such incident (= $5,000 replacement cost); AND  the probability of such ev ... (read entire answer)
4
Answers
448
Views
18
Total Upvotes
on Jul 01, 2023 on Jul 01, 2023
Last Activity

Does the case proceed analytically?

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Apr 27, 2023
The best answer (on Apr 27, 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 Apr 27, 2023
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Ah ha! You have uncovered an under-spoken truth when it comes to casing: Most cases don't make perfect sense! Yes, this is true! This even applies to some cases I have written. Why? Well, a few reasons: We have 20-25 mi ... (read entire answer)
1
Answer
384
Views
9
Total Upvotes
on Apr 27, 2023 on Apr 27, 2023
Last Activity

Loads of information

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Mar 06, 2023
The best answer (on Mar 06, 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 Mar 06, 2023
#1 Bain coach | >95% success rate | interviewer for 8+ years | mentor and coach for 7+ years
Hi Markus, I would be happy to share my thoughts on it: First of all, in my opinion, not all of the "additional information" listed in the case study needs to be inquired about from the candidate. Therefore, I would hig ... (read entire answer)
2
Answers
407
Views
20
Total Upvotes
on Mar 06, 2023 on Mar 06, 2023
Last Activity

Charging cycle - economics of EV

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Dec 29, 2022
Anonymous gave the best answer on Dec 29, 2022
In classic interview form, I don't think that information is relevant when calculating the total revenue of EVs in this case. To use it, you would also need the time it takes to charge an EV. Cases sometimes throw in ir ... (read entire answer)
1
Answer
466
Views
4
Total Upvotes
on Dec 29, 2022 on Dec 29, 2022
Last Activity

Nice case with a couple of missed analysis

Oliver Wyman case: Full Electrons Ahead
Most recent answer on May 04, 2022
The best answer (on May 04, 2022) 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 May 04, 2022
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi Arun, I agree! In general, most cases can have additional “brownie points”. It is, however, impossible to predict/write down them all so it is the interviewer's job to notice creativity and next-level thinking. There ... (read entire answer)
1
Answer
672
Views
4
Total Upvotes
on May 04, 2022 on May 04, 2022
Last Activity

Revenue

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Mar 22, 2022
The best answer (on Mar 21, 2022) 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 Mar 21, 2022
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi Tanvi, This one is a bit tricky! The installation cost per station is 40% of 750€ which equals 300. The following sentence in the case is your clue: "Total cost including installation of the station is € 750, of whic ... (read entire answer)
2
Answers
891
Views
11
Total Upvotes
on Mar 22, 2022 on Mar 22, 2022
Last Activity

Young ppl in large city interested in 150km? Why?? :(

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Jan 01, 2022
The best answer (on Dec 31, 2021) 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 Dec 31, 2021
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi there, Diagram 2 = city vs. rural Diagram 3 = young They are putting insights from the 2 together. From diagram 2 you can see that WTP increases linearly for people in large cities (though the largest increase happen ... (read entire answer)
2
Answers
786
Views
22
Total Upvotes
on Jan 01, 2022 on Jan 01, 2022
Last Activity

Question about the percentage of customers

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Jul 26, 2021
Anonymous gave the best answer on Jul 26, 2021
Hi there, I can help you on this.  For each car sold you lose EUR -1,000, given the decrease in price (no matter if sold with warranty or not) For each car with warranty  you will have a profit of EUR 1,250 (pri ... (read entire answer)
1
Answer
887
Views
7
Total Upvotes
on Jul 26, 2021 on Jul 26, 2021
Last Activity

80% of customers have to buy the warranty ? how to calculate this number?

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Apr 30, 2021
The best answer (on Dec 01, 2021) is from:
Marco-Alexander
Expert
Former BCG | Case author for efellows book | Experience in 6 consultancies (Stern Stewart, Capgemini, KPMG, VW Con., Hor
Marco-Alexander
Expert
gave the best answer on Dec 01, 2021
Former BCG | Case author for efellows book | Experience in 6 consultancies (Stern Stewart, Capgemini, KPMG, VW Con., Hor
.
1
Answer
790
Views
6
Total Upvotes
on Apr 30, 2021 on Apr 30, 2021
Last Activity

Why is the revenue generated at 300 euros for the partnership section?

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Feb 26, 2021
The best answer (on Feb 25, 2021) 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 25, 2021
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi Ukasha, Lucky for you this question has already been asked and answered! Here: https://www.preplounge.com/en/consulting-forum/idea-2-cooperation-with-energy-provider-npv-calculation-5422 As Antonello notes: "T ... (read entire answer)
2
Answers
840
Views
31
Total Upvotes
on Feb 26, 2021 on Feb 26, 2021
Last Activity

How did you caluculate the % of clients that must buy the warranty with the new price to maintain profits constant? Thx

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Feb 03, 2021
The best answer (on Feb 02, 2021) is from:
Luca
Expert
BCG |NASA | SDA Bocconi & Cattolica partner | GMAT expert 780/800 score | 200+ students coached
Luca
Expert
gave the best answer on Feb 02, 2021
BCG |NASA | SDA Bocconi & Cattolica partner | GMAT expert 780/800 score | 200+ students coached
Ciao Chiara, I'll try to make this point of the business case clear for you. Let's consider the following data for Model 300: Original price: 51,000€ New price: 50,000€ Price decline: 50,000€-51,000€ = 1,000€ ... (read entire answer)
3
Answers
901
Views
35
Total Upvotes
on Feb 03, 2021 on Feb 03, 2021
Last Activity

What would be the ideal approach and structure for the interviewee?

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Jan 26, 2021
The best answer (on Jan 24, 2021) 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 24, 2021
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi there, Please never have a bucket that is "Understanding the problem"...this is implied i.e. the entire point of a framework! Please also don't have a "Recommendations" bucket. Exact same reason...it's implied th ... (read entire answer)
3
Answers
863
Views
39
Total Upvotes
on Jan 26, 2021 on Jan 26, 2021
Last Activity

warranty calculation

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Oct 29, 2020
The best answer (on Oct 29, 2020) 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 Oct 29, 2020
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Year 1 (7%) + Year 2 (5%) + Year 3 (4%) + Year 4 (2%) + Year 5 (4%) = 22%
3
Answers
1.1 k
Views
1
Total Upvotes
on Oct 29, 2020 on Oct 29, 2020
Last Activity

Percentage of customers needed to buy the warranty in order to keep WyCar’s profit margin from model “300” stable

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Aug 20, 2020
The best answer (on Aug 20, 2020) 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 Aug 20, 2020
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi there, Fair question! So, because we are losing revenue from price reduction, we need to make up for this by gaining revenue from warranty sales. This is a classic breakeven! So, first, create the full formul ... (read entire answer)
1
Answer
954
Views
4
Total Upvotes
on Aug 20, 2020 on Aug 20, 2020
Last Activity

How do you calculate the percentage of Customers to keep profit margin stable?

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Aug 06, 2020
The best answer (on Aug 06, 2020) 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 Aug 06, 2020
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate
Hi Franziska, This is a classic breakeven! So, first, create the full formula, and then pulg-in what's missing. Profit from warranty* % quantity sold = Profit loss from car (Revenue from warranty - expected co ... (read entire answer)
1
Answer
1.0 k
Views
10
Total Upvotes
on Aug 06, 2020 on Aug 06, 2020
Last Activity

how to understand the last calculation

Oliver Wyman case: Full Electrons Ahead
Most recent answer on Feb 05, 2020
The best answer (on Feb 05, 2020) is from:
Luca
Expert
BCG |NASA | SDA Bocconi & Cattolica partner | GMAT expert 780/800 score | 200+ students coached
Luca
Expert
gave the best answer on Feb 05, 2020
BCG |NASA | SDA Bocconi & Cattolica partner | GMAT expert 780/800 score | 200+ students coached
Hello, I will try to make it clearer for you: Decrease in profit due to change of price = Old price - New price = 51.000 - 50.000 = 1.000 Profit for each warranty sold = Revenues - cost of replacement = 2.350 - ... (read entire answer)
1
Answer
1.3 k
Views
4
Total Upvotes
on Feb 05, 2020 on Feb 05, 2020
Last Activity
1 - 20 of 24 results
How likely are you to recommend us to a friend or fellow student?
0
1
2
3
4
5
6
7
8
9
10
0 = Not likely
10 = Very likely