The 5 Whys is a well-known problem-solving tool. Initially developed in 1970’s by Sakichi Toyoda to help improve the Toyota production, it is now taught in business schools across the country ...

When I lived in Japan during the Nineties, one concept that really struck me was the '5 Whys'. This model for introspection was developed by Sakichi Toyoda, a Japanese inventor who founded the ...

It turns out, it was actually a theory created by Sakichi Toyoda in the early 1900s called the 5 Whys. Toyoda’s original theory is great, but for the sake of progress, let’s assume by asking ...

Akio Toyoda is in Washington to deal with the crisis at car giant Toyota, the company set up by his grandfather more than 70 years ago. But why did the company change its name from Toyoda to Toyota?