I've heard this story from several foreigners in Japan:
I hired Japanese Company A for a service. I didn't like Japanese Company A, so I went to Japanese Company B in the same industry and tried to hire them instead. Japanese Company B refused to do business with me because I was already a client of Japanese Company A.
- What is the name for this practice in Japanese? Is it called 企業連合?
- Is this legal in Japan? Is there some kind of law which prohibits this practice? What is the law called? Is it called 独占禁止法?
To be clear, this is a question about Japanese vocabulary. If I can get an answer about the vocabulary, then I can research the law. If anyone has any links to articles on this subject, that would be very helpful.