/biz/ - Business & Finance

Hello. I am running a dungeons and dragons club in my school, and my characters want to start a Trading Post. Could you guys give me some complications that could arise from that, on a business scene? How often/much does the value of material goods actually fluctuate? I want the players to have a realistic experience, and I'd like my students to get involved in investing. I'm hoping D&D can be a gateway to that.