I'm playing on the latest version of Minecraft on ps4.
I turned a villager into a librarian and then made it into a zombie camp several times and then healed it again. However, its prices do not drop.
Have seen in other videos that you can farm an infinite number of Emeralds through trade. (Books -> Emerald, Emerald -> Bookshelves.)
A bookshelf costs 4 Emeralds and for 3 books I get 1 Emerald.
Can the prices go down or does it not work on the ps4?
The more you trade with them, the lower the prices will be.
I already have the Villager at the highest level master.
The Playstation Edition is a slimmed down version of the normal Minecraft. Therefore, the console can be the reason. But I don't know what reason Mojang would have to take something banal out of it.
I assume the bug / trick only works in the Java edition.
