About
I am Yuki Toyoda, a professor at the Graduate School of Innovation Management, Hosei University (Tokyo). I teach MBA courses on business data analysis, research methodology, and marketing science. My research covers the methodology of qualitative comparative analysis (QCA) and its use in marketing and management.
What this blog is for
- Explaining threshold-sweep QCA and the ThSQCA R package, step by step.
- Sharing browser-based tools for QCA and marketing research, built for teaching.
- Writing short notes on papers, methods, and teaching, in plain language.
Posts tagged R are also distributed through R-bloggers once the blog is registered there.
Where to go next
- New here? Read Start here.
- Want the package? See ThSQCA.
- Want to cite something? See How to cite.
- Something unclear or wrong? See Contact.
- Unfamiliar word? See the Glossary.
A note on the tools
The tools are developed at the Yuki Toyoda Laboratory, Graduate School of Innovation Management, Hosei University, for learning. They may contain calculation errors, so please verify results with other software before using them in research or business.
How this site was made
This site and its browser tools were developed with the assistance of Claude, an AI model made by Anthropic. I used Claude for writing and verifying the code of the tools, proofreading and translating the text, and building the website. The content and the analytical methods are my own, and I am responsible for them.