Case

Toothbrush disruption

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Problemdefinition

We are a global toothbrush producing company. Our portfolio consists of two kinds of toothbrushes - 'manual' that sells for $5 and an electric 'rechargeable' that sells for $60. Last year, a competitor introduced a battery-powered electric “spinbrush” that sells for $8.5 and now has 2% of the toothbrush market. We don't have a similar offering and would like you to tell us whether we should develop a similar product or not.


Kommentare

This is a candidate-led case; therefore the candidate should lead the case from start to finish.


Kurzlösung

Key Question: Should the client develop a product similar to the spinbrush?

Answer: Since the rechargeable segment is more profitable ($12.9 per customer per year) than manual and spinbrush ($7 per customer per year), the client should consider alternative means to respond to spinbrush because producing a similar product will further threaten its most profitable rechargeable segment.


Detaillierte Lösung

Paragraphs highlighted in green indicate diagrams or tables that can be shared in the “Case exhibits” section.

Paragraphs highlighted in blue can be verbally communicated to the interviewee.

Paragraphs highlighted in orange indicate hints for you how to guide the interviewee through the case.

I. Background

If the candidate is struggling with the initial structuring of the problem, ask him to use the metric “per customer per year” for comparison of the segments.

Provide the following information to the interviewee if requested:

Till last year, the toothbrush market was of 75% manual and 25% rechargeable toothbrushes. The 2% market share gain of battery spinbrush has come mostly at the expense of rechargeable toothbrush sales.

Manual toothbrush:

  • Net profit margin on sales of manual toothbrushes is 70%
  • On an average, a manual toothbrush consumer buys 2 toothbrushes per year

Rechargeable toothbrush:

  • Rechargeable toothbrushes are sold as two separate parts- 'base' that sells for $60 (with a 65% net profit margin) and 'head' that sells for $5 (with a 90% net profit margin) - Both are needed for the device to work
  • Life of an average base is 10 years
  • Life of an average head is 6 months

Spinbrush:

  • We believe that we can produce it at a cost of $5 per brush

II. Analysis

Key Question: Should the client develop a product similar to the spinbrush?

To answer this quesiton, we should calculate the profit per customer per year for all three segments.

Assumption - The life of a spinbrush is 6 months.

We can see that the manual and spinbrush are similar in terms of profitability. But the manual is unlikely to lose share to spinbrush as it is cheaper.

Rechargeable is the most profitable segment out of the three and is losing share to spinbrush. If the client starts producing a similar spinbrush it will further threaten the rechargeable segment.

Therefore, the client should consider alternative means (and not knockoff) to respond to the spinbrush product.

III. Conclusion

The client should consider alternative means to respond to spinbrush as producing a similar product will further threaten its most profitable rechargeable segment.

Schwierige Fragen

If the interviewee solves the case very quickly, you can come up with more challenging questions.

Verwandte Consulting-Fragen

Two frameworks here: 4 Ps (= price, place, product, promotion), or the Ansoff Matrix (grow with existing or new products in existing or new markets). Both are quite MECE. Word of caution however --... (mehr)

Beste Antwort bisher:
McKinsey / Accenture / More than 300 real MBB cases / Collected all Big 3 offers / Harvard Business School

Hi, 1) Youproactively ask in the beginning, even before drawing the structure (something like "What kind of products / revenue sources do we have) and then split the structure into price, qty,... (mehr)

Beste Antwort bisher:
Hemant
Experte
Ex-Mckinsey, current strategy guy at Google.

It's a badly framed question but that is no reason you should have a badly thought-out response. Sometimes interviewers will ask these just to tell whether you jump into a "5%? 10%?" guess-work or use... (mehr)

Bisher beste Antwort von 4 Antworten:
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Hi Moji, it seems your issue is not the math computation, but rather how to structure the math part once you receive a question (that is, the logic behind that you should apply). This means you sho... (mehr)

Beste Antwort bisher:
Jacopo
Experte
Ex Bain and A.T. Kearney (7 years in consulting) / Now Private Equity / 200+ real cases / Landed all Big 3 offers

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Case-Exhibits