For CBS 2007 Case: Refrigerator in India, I don't quite get it

New answer on Aug 16, 2020
2 Answers
Anonymous A asked on Aug 16, 2020

For CBS 2007 Case, I don't quite get it: why from every 7 years people change the refrigerator, you can get the market size?

CBS 2007 Case: Refrigerator in IndiaAAdditonally, I don't understand their breakeven here:

COGS of 80% over price does not seem to be completely out of what we would expect in a manufacturing company. I would worry about COGS being just 25%, which will signal that reducing price by 20% is not a good idea to attain 30% more sales.

Casebook link:


Overview of answers

  • Upvotes
  • Date ascending
  • Date descending
Best answer
replied on Aug 16, 2020
McKinsey Senior EM & BCG Consultant | Interviewer at McK & BCG for 7 years | Coached 350+ candidates secure MBB offers


Well, this is a funny definition of Market Size anyway. Market size normally refers to the volume of transactions/sales/customers over a defined time frame (e.g., a year). But it is NOT the total number of items that are in use. So to me it seems that this case has been devised by a person which has a very shallow understanding of business mechanics.

Unfortunately, this is quite common in case books. Therefore I am very clear to mentees on the following point:

Studying Case Book solutions is a colossal waste of time - and very often it is even harmful!

They can well use the cases for practicing, but the solutions provided in the boos should be ignored. Once my mentees have learned how to properly think through strategic issues, their own approaches are usually far better and more robust than the book solutions anyway.

Cheers, Sidi

Was this answer helpful?
Content Creator
replied on Aug 16, 2020
MBB | 100% personal interview success rate (8/8) and 95% candidate success rate | Personalized interview prep

Hi there,

I completely agree with Sidi.

This is a very odd market sizing example. I don't agree with the approach. Given it is such an old casebook, this might be why.

All that said, I actually think casebooks have immense value. However, the point of them is much less about learning each specific answer and much more about learning how to think, how to approach problems, how to drive forward with a hypothesis, how to parse through lots of information quickly, etc. etc.

Was this answer helpful?
Sidi gave the best answer


McKinsey Senior EM & BCG Consultant | Interviewer at McK & BCG for 7 years | Coached 350+ candidates secure MBB offers
Q&A Upvotes
134 Reviews