prediction markets

Prediction markets are only effective if a lot of people participate.  What are the best ways to encourage more traders and trading within internal company prediction markets?

The results of a prediction market are correlated to the size of its network; therefore companies should encourage participation in order to see positive results. Companies have some of the options below:

• provide time during the work day/week for employees to trade
• use non-monetary rewards like prizes, public recognition, or coupons to act as incentives for active and accurate traders
• incorporate the trading platform into software that employees use daily (email?) so that it becomes part of their daily routine to use it
• educate employees on the benefits and use of prediction markets to overcome resistance

I found it interesting to learn that DARPA studied the use of prediction markets to enhance US Intelligence, though the research was pulled after congressional criticism accused it of being "terrorism betting parlors." At that time (2003) lot of issues had yet to be resolved, such as determining a threshold for action or under which circumstances should the general public be allowed to trade. the use of prediction markets still isn't widely used, but I wonder if some agencies would be more receptive to its use today.

https://www.cia.gov/library/center-for-the-study-of-intelligence/csi-publications/csi-studies/studies/vol50no4/using-prediction-markets-to-enhance-us-intelligence-capabilities.html