Is it a good idea to encourage ALL employees to trade in these markets? Should insiders and/or highly uninformed people be allowed to trade? Do they help or hurt the market?
Obviously the hope in prediction markets is that the users willing to pay for securities are those with better understanding of the subject, therefore increasing the value (probability) of their preferred outcome. As with wikis, there is the potential that ill-informed users will distort the final product. However, given the proven success rate of prediction markets as cited in the case, uninformed users do not seem to be drastically reducing the reliability of the predictions. Insiders, as long as the motivation is not profit, increase the likelihood of an accurate prediction (were reward based on profit, insiders would have motivation to drive down the cost of securities they believed would win, thus skewing the prediction).