Prep Materials for Interviewer-led cases

Case Case Prep
New answer on Jun 14, 2019
3 Answers
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Anonymous A asked on Jun 13, 2019

Dear community,

Next september I will be having first rounds with all MBB in Spain, the thing is that the type of interview is interviewer-led, which means that most of the books or cases that I can find online do not fit, for example the VC differs greatly from what I will face during the interviews.

Is there any material (books or cases) that could be bought or found on the internet in order to prepare these interviews during the summer.

Thanks your your answer


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Hi there,

thanks for asking your question on our Consulting Q&A!

In case you haven't checked it out, yet: On PrepLounge, we have quite a few McKinsey-style cases. Just go to our Case Library and tick the box on your left hand side that says "Interviewer-led (McKinsey style)"

Best of luck for your interviews in September!



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This is one of the most common misconceptions that I see among the candidates:

  1. First of all, at McKinsey interviews, you will have both interviewer and interviewee led cases. Chances of getting an interviewee led case is higher on the 2nd round
  2. Secondly, if you can solve the case - it really doesn't matter who leads the case. Interviewer led cases are even easier. But you should prepare for the worst case by leading the cases yourself

The cases are very similar both ways so pls don't lock yourself by this misconception and just start prepping for cases


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Interviewer-led (or McKinsey style) cases are quite common in case books, so I would advise to take a closer look. The case library on this site also allows you to filter case-types, if you do that you will find 37 interviewer-led cases.

Hope this helps.


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