On a new server, I'm not exactly sure how it would work.
At the begining, people could exchange 1 gold bar for 1 unit of currency, at a fixed rate. This was the only way to get money to begin with.
Later they started offering money daily for clicking their votes on server rating sites. This wasn't that bad, because the ammount was low to start with, but unfortunantly they kept making it higher and higher, until it got crazy. The daily offer was 25z when I started on my last server, it was upwards of 900z recently. It was just too much money.
This is seperate of the money created from people just donating to the server. When all the kids got money at christmas time this cause a big problem and was the last time I almost ran out of everything. THe prices never really went down to their old levels either. Everything basically doubled. It was almost like real life. That's why I ended up fighting with the server owner. We were going to strike and temporarily shut down the exchange. Then he called me a terrorist....after that I slowly just powered down and left. Hahaha...guy was too selfish for donations!