Tag Archives: Yoshiki Kashiwagi

Business Logical thinking class at Yokohama National University

We have finished final exam presentations today in the class.

It was required to make a team presentation to propose a product development strategy for the global market.


The question was which to put more priority, ECO-friendly or Price-conscious products for the global market. The students were required to apply :


  • Logical thinking process and approaches
  • Techniques to make a logical structure for presentation 


in the presentation.



The conclusion must be supported from several perspectives such as company’s profit, brand image, customers, social responsibility etc.


Five teams presented their stories today. They did a great job!


Business profit simulation class (Final exam)

Final exam case was announced last week.

The students are required to complete their own business financial plan and give an individual presentation in two weeks.


This is the case:


There is no “right” answer but the plan must be feasible and reasonable while meeting all the business requirements given in advance.


They have already learned the techniques to develop a business financial plan.

Making reasonable assumptions and adjustments to meet the requirements are the key!


Good luck and enjoy it !



How would you make sure that you meet MECE requirement in your logic tree?

“I am not alway for sure that I meet the MECE requirement when developing a logic-tree”

This is a common issue for many problem-solvers.

Many of the pure “academic” people cannot solve this issue and they may not be able to reach a practical solution forever.


On the other hands, practical business person needs to conclude issues and decide which way to go.

I have the solution for such practical problem-solvers, which I teach to the students in my university business class.

There are two simple criteria as follows. If you are sure that you meet the criteria, then you may not have any practical issues even if you stop expanding logic-tree further.



This is something you cannot find in any kinds of “logical-thinking” books but you definitely need to know when facing a practical issue to solve.


Profit simulation class to launch at Yokohama National University

This monthe, as an intensive program, I will launch a new class, ” Business management with accounting and finance” at Yokohama National Univesity.


In the class, students will learn how to develop a busines profit simulation with Excel.

You have to justify your business plan( and its profitability) to a final decision maker to get an approval.

You will always be required to propose how profitable the new business will be based on your simulation, whih shows how much profit you will and when.

In the class, the students will also learn how to simulate its potential risks in a qunatitative ways(with Excel).

Profit simulation.jpg

I am very excited to launch the new class and would be happy to conduct the class at your company/university even outside of Japan.


4 KEY REQUIREMENTS for your logic development

When you develop your argument (message or conclusion), you have to meet four requirements in order to make your story convincing/logical.

This is a memo from my class of “logical problem solving”  at Yokohama National University:

Key requirements

First, you need to make clear what you need to address to directly support the conclusion. For example, I asked my students to develop their logic to support the following conclusion:

“Yokohama National University is the best school”

Many students, as I had expected, listed many reasons to show “the university is a GOOD university or BETTER university”, neither which is a direct answer to the original issue/conclusion. In order to support it, you need to show why you can say it is THE BEST, for which you need to show uniqueness of the university, not just showing good points or better points.

Second, when you address some reasons to support the conclusion, you need to make sure that the reasons meet MECE requirement. If you miss, even unconsciously, any critical reasons, it makes your argument very weak to convince somebody. In other word, it needs to be comprehensive.

Third, in addition to the comprehensiveness, those reasons need to be objective. Sometime you may rely on your own experience, which is very personal and limited in general. Reasons to show should be more general and objective so that you have convincing reasons.

Finally, even if you prepare many “good ” reasons, they need to logically and directly support the conclusion. Still many people make a common mistake of “logical jump”. In such case you need to show some more layers between the reason and conclusion to bridge the gap.

Also, the reason may only partially support the conclusion and you may need to have more direct reason(s) to the conclusion. You may use some “logical thinking” techniques to reinforce the connections.

Your presentation, discussion, negotiation and communication will be much more convincing and logical when you are aware of the requirements above, when you make your logic.

I would like to help you apply those concepts to practical problem solving, especially in business setting.

5 useful tips #3 ~ Data utilization at work

This is the third video to help you use your business data much more effectively.

In this video, you will find how you can combine “average” and “correlation” in the same chart. Enjoy!

5 useful tips #2 ~ Data utilization at work

This isthe second video to show how to enrich your data analysis by simply adding a second axis to your chart.

Enjoy an example from one of my projects which help a public sector in Japan for their tourist promotion.