Please fix constant undercutting & with multiple retainers

[Jinko]

If they are constantly undercutting then they are willing to reduce their profits possibly because they farmed/gathered/etc their materials and do not lose as much money form dropping the price. If any sort of immediate income is important then sellers will get very cutthroat with their price drops. It's how it works IRL too.

I don't see the relation, almost nobody in the real world can be self sufficient outside of a few, and in many cases those are huge corporations.