Calculation of number of wine bottles in Year 5

Oliver Wyman case: Setting up a Wine Cellar
New answer on Feb 07, 2023
3 Answers
Anonymous A asked on Feb 06, 2023

Hi Team, 

In Year 5, why aren't we considering the sale of 120 bottles (investment cellar in Year 0)? Instead, we are including these 120 bottles along with the 72 bottles from Year 1, in Year 6 sale calculation, why is this so? I would like to understand the logic behind the same. 

Thanks in advance! 



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Content Creator
updated an answer on Feb 07, 2023
Ex-Bain and interviewer for 7+ years | >95% success rate | mentor and coach for 6+ years

Hi there,

I would be happy to share my thoughts on it:

  • It seems like in the case study, the initial investment is considered to be made in year 0, and as a result, the sale of 120 bottles takes place after 5 years, i.e., in year 5.

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Content Creator
replied on Feb 07, 2023
MBB | 100% personal interview success rate (8/8) and 95% candidate success rate | Personalized interview prep

Hi there,

As the case states, you are selling the 120 initial investment in year 5!

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replied on Feb 06, 2023
Ex-BCG Principal | 8+ years consulting experience in SEA | BCG top interviewer with ~5 years of interviewing experience


I think the case treats the initial investment as “Year 0”, and the time accounting only starts after you start drinking and buying new wine.

This is why the case says “Thus at the end of year one, I should have 120+72=192 bottles in the investment section or 242 bottles in the total cellar”

Hope this clarifies!

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Anonymous A on Feb 06, 2023

In the "number of wine bottles" section - "After 5 years (in my time accounting), I sell the kick-start of 192 bottles". This says that you sell 192 bottles in Year 6 In the "economics of the cellar" section - After 5 years, you sell the kick-start of 120 investment bottles and get a big push in revenue of 120*$250=$30,000. Here, the solutions says that you sell 120 bottles in Year 6. I'm confused on this aspect.

Hagen gave the best answer


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