Well, a proper stockmarket is EXTREMELY difficult, maybe even impossible to implement in a small virtual environment like ECC, not to mention the amount of people who would be really confused and have no idea how a stockmarket works (I know a lot of people who don't know how it works) All in all, too complicated, too difficult to implement I say it's not worth the effort.
not at all @Danielman33 this is a current suggestion and i was just pointing out what people had to say in the past. get good or stop trying