If you want to see the mechanics in action or read the official notes, you can check out:
The RPG Tycoon: Supply & Demand Steam Page for a full breakdown of features. RPG.Tycoon.Supply.and.Demand.v1.4.9.rar
To get a better feel for how the supply and demand mechanics change the gameplay, you might find these developer and community walkthroughs helpful: If you want to see the mechanics in
It looks like you're searching for info on (v1.4.x). While the specific .rar file name you mentioned often appears on file-sharing sites, the actual "good article" or content you're likely looking for is the massive overhaul this update brought to the game. RPG.Tycoon.Supply.and.Demand.v1.4.9.rar