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Bain Business Case

Hi, 

This is a question from Bain sample case. I attach the question and relevant graphs below. Would appreciate if someone can give me hints on how to solve this problem. Thank you very much!

This is the link for the test if anyone finds it helpful:

https://mconsultingprep.com/wp-content/uploads/2019/10/Business-Case-Test-2-Context.pdf

https://mconsultingprep.com/wp-content/uploads/2019/10/Business-Case-Test-2-Question-fixed.pdf

5 Answers
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Top answer
Deleted user
Coach
on Jan 27, 2021

Hi Valeria!

The correct answer is (b) ~6%. 

Relative Market Share (RMS) is defined as a company's market share, devided by the market share of it's largest competitor, e.g

  • for Player A, it is it's own market share, devided by the share of Player E,
  • for Player E it is it's own share, devided by the share of Player A

Therefore, you can express the total share of A, E, B in terms of the market share of Player A (let's call that MS(A)):

45% = 1 x MS(A) + 0.75 x MS(A) + 0.55 x MS(A)

==> MS(A) = 19.6%

Now you need to add the total share of the new company 

MS(New) = 0.1 x MS(A) + 0.2 x MS(A), because RetailCo and Player D have a RMS of 0.1 and 0.2 respectively.

MS(New) = 0.3 x 19.6% = 6%

Hope this helps

6
on Jan 27, 2021
Thank you so much !
Ian
Coach
on Jan 27, 2021
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate

Hi there,

There appears to be duplicates of this question. That said, I agree with Henning. The answer is b

on Jan 27, 2021
McKinsey | NASA | top 10 FT MBA professor for consulting interviews | 6+ years of coaching

Hi,

B is the correct answer.

Best,

Antonello

Clara
Coach
on Jan 27, 2021
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut

Hello!

Couldn´t have said it better than Henning, it´s b. 

Keep in mind the big agility you need to make all this calculations, + the reasoning, in a limited time. 

Cheers, 

Clara

Gaurav
Coach
on Jan 29, 2021
#1 MBB Coach(Placed 750+ in MBBs & 1250+ in Tier2)| The Only 360° coach(Ex-McKinsey+Certified Coach+Active recruiter)

Hi Valeria,

nice case, thanx for sharing! I'm sure a lot of candidates will find it helpful, too.

The correct answer is b, Henning is spot on.

Cheers,

GB

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