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 best way top manager can encourage more of their employees to participate in the internal prediction market:

1.       Not by forcing the employees, since when employees are not comfortable with the situation, they tend not to give honest answers, this would ruin the purpose of the research.

2.       Letting the employees feel that their inputs is valuable to the company. People usually show a lot more motivate when they know their works are appreciated.

3.       The company can gives out prizes for the participant.