I took a fair break from this game during the time it got big on steam, but after coming back I've noticed the auction house pricing on a lot of materials is abysmally low. I suggest setting up some fair pricing on materials, to be sold to NPCs. That way, people can start selling off some of their materials through NPCs, rather than selling 3 star materials for 60 crowns a piece, which should get the horrendous supply and demand problem under control.
This would cause even more inflation seeing as materials are nowhere nearly in short supply. Having all those materials sit on auction for cheap freezes what could potentially be another giant floater in the metaphorical toilet of our economy.