Roel van der Hoorn
Ok, got it. But what happens when the player buys a share from the bank instead of the company? Does the bank STILL pay the company the fixed price?
Nope. The bank only pays the company once for each share.
You could say that at the start of the game shares are owned by the company. If you buy a share, you effectively pay the company (via the bank). If you sell a share, you get money from the bank, so if you (re)buy a share from the bank, you only pay to the bank. The bank doesn't pay the company again.