So, when company, factory owner, or who sell service/good get together, and talk how much they will charge consumer, it is price fixing.
So, I just thinking, worker are those who sell larbor. Worker band together, which we call worker union, to decide how much they should ask from their employer, seem similar to price fixing.
More like it guarantees a minimum wage. Not sure how it works in the US, but where I’m from you still negotiate your pay even if you’re a member of a union.