How many business are in the US?

Guesstimate Market sizing
New answer on Mar 24, 2021
3 Answers
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Anonymous A asked on Mar 23, 2021

Hello

How would you start with: how many business are in the US?

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Clara
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replied on Mar 24, 2021
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut

Hello!

Agree, I would always recommend you to give it a shot and then post it here, this would help you the most.

This is a very typical market sizing case [with the particularity of being super wide]

Cheers,

Clara

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Gaurav
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replied on Mar 24, 2021
Ex-Mckinsey|Certified Career Coach |Placed 500+ candidates at MBB & other consultancies
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Ian
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replied on Mar 23, 2021
MBB | 100% personal interview success rate (8/8) and 95% candidate success rate | Personalized interview prep

Hi there,

You'll really get the best out of this exercise if you try it yourself. Why don't you post what you're thinking and we can help?

Hint: Do you think this makes more sense top-down or bottom up?

General Tips

Remember that there's rarely a "best" answer with market sizing. What's important is that you break down the problem the way it makes sense to you. Importantly, break it down so that the assumptions you make are the ones you're most comfortable in.

For example, do you know all the major brands? Great go with that. Do you understand all the segments of that country's population (either age or wealth or job breakdown)? Go with that. Do you know the total market size of the tourism (or hotel) industry? Then break it down that way.

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