McKinsey & Company Interview Questions, Process, and Tips

Round: Case Study Interview
Experience: I never realized when my case started; he was asking me the model on which Inductis works, and slowly moved towards what are the challenges for a company like Inductis in expanding. Only when he said “Or let’s say the CEO of JP Morgan, Kevin, or the CEO of Infosys comes to you and says that they wanted to expand their offshoring strength from 250 to 400, but they were not able to scale up.”, did I realize that my case had started! I politely asked him, “Is this a case, or I should be answering just on the fly?”; to which he replied – “Whatever you deem correct. Okay, lets consider it a
case”. I came up with the following issues:
1) They are not getting quality CVs
2) There are too many companies wooing the skilled people we want
3) There are some problems in meeting the expectations of the workers – challenging work , work-life balance and growth opportunities
4) Where do our workers go after leaving us
5) Is there some problem with the HR department
It turned out that the 5 point was one of the major problems.

Then I was given another case – “Mr Murthy is contemplating to expand globally and set up centers in US because India gets only $30 bn out of the total $800 bn offshoring/outsourcing market. What are the pros and cons?”
The most important negative point I identified was that that the cost arbitrage would not be there. Noshir then asked me to focus on advantages, and I came up with the following:
1) Proximity to the client
2) Cultural affinity
3) Better domain knowledge as you are working where the action is taking place
4) Lower telecom costs and hurdles
5) Political benefits – Democrats are totally against moving jobs to Asia, and hence such a move would be politically hailed


Tips: Biggest learning – your case can start anytime without you being explicitly told. This is really true for McK interviewers especially. Also, they don’t always look for structuring – when I was starting to jot down some points for my first case, the interviewer told me not to worry about structure and clarificatory questions and other formalities; he said “I know you would be master in all this, so I just want recommendations and issues which will add value to the client”.

Round: Case Study Interview
Experience: In the second interview I was given a case study. It was conducted by another Interviewer. Your friend lives in Beijing, and is observing the commercial/office buildings being built these days. He is contemplating getting into the business of leasing cranes to constructors. What do you think of this idea?
The rough framework I told him I would follow is:
1) The market opportunity
2) Competition
3) Contacts, especially with suppliers of cranes
4) Investments in this business
5) Risks going forward
After a little discussion on each of these, he told me that this is an estimation case, and I have to estimate the market size of this business in $ terms. There can be several ways to go about it, and I took the following one:
1) An average building is built on a square of side 70m
2) Assume Beijing to be a square of side 20km
3) Out of the total are of 400 sq.km, 50sq.km is used for commercial purposes
4) 80% of this, ie 40 sq. km is the area on which a building is actually build (the rest 20% for roads, lawns, parking lots etc)
5) This gives about 8000 buildings which can be built
6) Assume in the next years, a total 2000 buildings will be build, 400 each in every year
7) A building construction requires 3 cranes in the initial 4 months,
2 cranes in the next 4 months, and 1 crane in the last 4 months, completing in whole 1 year
8) A crane costs $50,000 per month Doing all the calculation should give the total annual market size of approximately $480 million.


Round: Case Study Interview
Experience: In the personal Interview the interview started from a discussion on BTO practice for 20 minutes. The case interview started after a discussion of my short-term/long-term goals, how consulting fits in and why MBA etc.
She gave an actual situation she met in China on one of her projects:
A meat manufacturer in Europe, selling only ham and sausages, has been seeing declining profits for the last 2 years. So what could be the reason behind it?
I did the following analysis step by step:
1) What specific did we do 2 years back? – Nothing was the answer.
2) Have the customer tastes been changing? – No, the market was stable
3) How is the competitive landscape? – 2 competitors, each having 30% mkt share, while we have 40%.
4) Revenue-Cost analysis: It turned out that the volumes of sausages was going down, while it was constant for ham. The reason was that one of the competitors was selling sausages at 99 cents a kg, while we sold at $1/kg; also, we sold ham at $4.2/kg.
The issue then shifted to the question – how was the competitor able to sell sausages at 99 cents a kg? While analyzing the cost structure, it emerged that sausages were being sold at break-even!
Now the question was – if they are zero margins in sausages, then how could lower sausage sales trigger a decline in profits? I asked some more questions about how they were manufactured, and found that the following process is followed: the company buys chunks of meat, makes ham out of them, and the small, leftover pieces of meat are used to make sausages. Hence, when the sales of sausages went down, it was because they were not able to sell the leftover meat at $1/kg they bought the raw meat at.

This rang the bell of ‘cost allocation’; why should sausages me allocated the costs for leftover scrap meat at the same rate as that of good meat used in ham? Well, one reason unearthed. Actually, there was a bigger reason; the indirect labor costs (salaries of CEO, managers etc) were being allocated very irrationally – though a ham was being sold at 4.2 times the price of a sausage and involved more processing and personnel time, both were allocated the same costs! In fact, a sausage was being allocated a total of 60 cents for indirect labor costs, though a ham was being allocated only 80 cents.
I synthesized the case by explaining how cross-subsidization was happening, how this could be because of the shrewdness of the manager of ham operations and the naivety of the manager of sausage operations. It turned out that this was exactly the reason behind all this.
In the second interview, I was not given any case.

Tips: Keep in mind how much time you would have for the case; As we had lost 20-25 minutes discussing BTO, I was well aware that no way would I get much time as this was a 30 min interview. Hence I quickly went through all possible issues, and zeroed in on the relevant one
Prepare your PI well.

General Tips: Structuring of the cases should be impressive.
Keep in mind how much time you would have for the case.
Skills:
College Name: Indian School Of Business (ISB)