McKinsey / Accenture / Got all BIG3 offers / More than 300 real MBB cases / Harvard Business School
Book a coaching

Granular market sizing

Someone asked on Oct 17, 2018 - 1 answer

Hello! I'm thinking of how one would do the market sizing for the following two questions:

1. Annual revenue of an average bike shop in London

2. Annual revenue of an optician (think Specsavers if UK, and Vision Express if US) in a busy area (think Oxford Circus for London, Fifth Avenue for NYC)

For both i have segmented as spend * number of customers annually. For spend I think I have a firm understanding how how I would segment and weight revenue streams, but for customers annually I would like to hear how others would approach such a question!

Thank you!

Vlad replied on Oct 17, 2018
McKinsey / Accenture / Got all BIG3 offers / More than 300 real MBB cases / Harvard Business School


1) From the demand side: every time you come to this store you see x ppl. You can assume how much time on average they spend at the store and calculate daily traffic. Then multiply it by the conversion rate (use an assumption based on personal experience)

2) You can also do it from the supply side:

Assume the size of the shop + warehouse room-> avg inventory (How many bikes it can fit) -> avg turnover (assume the inventory changing every season) -> sales


Related BootCamp article(s)

Interviewer-Led vs Candidate-Led cases

Case Interviews can be led by the candidate or by the interviewer: In Candidate-led cases the main challenge is the structure. In Interviewer-led cases the main challenge is to adapt quickly

0 Comment(s)

Related case(s)

Bain case: Asian lubricants producer

Solved 83.0k times
4.7 5 26615
| Rating: (4.7 / 5.0)

LubricantsCo, a very successful Asian premium producer of lubricants in their native region, would like to further increase their revenue and profit. The product range ranges from lubricants in the automotive sector (e.g. motor and gear oil) to industrial applications (e.g. fats, heavy-duty oils). ... Open whole case

Bain Case: Old Winery

Solved 23.5k times
4.4 5 616
| Rating: (4.4 / 5.0)

You have inherited the “Old Winery” from your grandfather, a winery which has been family owned for five generations and can be dated back to the 16th century. Half of the eleven hectares are used to grow white grapes, the other half to grow red grapes. They are grown in the conventional way, i.e. ... Open whole case

Bain Questions

Solved 19.3k times
4.6 5 230
| Rating: (4.6 / 5.0) |
Difficulty: Intermediate | Style: Fit interview | Topics: Personal fit

Tell me about a difficult situation you had to cope with. Tell me of a task which you didn’t like doing and explain why you performed it nevertheless. Why do you do things? What do you like doing most / What is your favorite hobby? Walk me through a situation where you showed leadership skills. Open whole case