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When to start with the preparation process?

case interview preparation PEI
New answer on Sep 19, 2020
5 Answers
2.3 k Views
Anonymous A asked on Mar 05, 2019

Hi everybody

which time horizon do you guys suggest for a proper interview preparation. I mean all in all, e.g., case studie practice, PEI prep etc. to my background: I am currently doing my PhD and have a quite clear idea about when to to my interviews. Namely July 2019.

Thank you very much!

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replied on Mar 06, 2019
McKinsey Senior EM & BCG Consultant | Interviewer at McK & BCG for 7 years | Coached 350+ candidates secure MBB offers

Hi! From my experience, 8 weeks is a realistic time frame for covering all aspects of becoming "offer-ready" while still having to work/study. However, it varies for each person, also based on whether some flawed habits need to be "unlearned".

Cheers, Sidi

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Sebastian on Mar 06, 2019

Hi Sidi! Thanks for your help.


Alexander replied on Mar 06, 2019

I think that really depends on your background. The word "PhD' raises red flags for me. When I finished my PhD, writing the thesis and then defending it took a ton of time. The last three months were full of 80 hour weeks, and I would not have been able to also prepare for case interviews. So be careful with this time commitment, most people underestimate it.

And then, it also depends on what you've been doing and on how much you actually need to prepare. If it's a PhD in economics you'll have a good starting position, but otherwise you might have to invest significant time into practicing mental math, learning business basics, or even networking (even if it's just to build a network of case study partners).

Good luck!

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Anonymous B replied on Mar 05, 2019

Now :)

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Anonymous replied on Sep 19, 2020

Hi A,

The best option would be to start preparing in advance because time's gonna be tight. You need over a hundred hours of preparation in general.

So in order to get it through without any rush, you better start now and spend about 3 months preparing, to apply in the middle of the preparation process, as my colleagues have mentioned.

Best, André

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Content Creator
replied on May 31, 2020
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut


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