  In this work we explore the implementation of the reputation system for a
generic marketplace, describe details of the algorithm and parameters driving
its operation, justify an approach to simulation modeling, and explore how
various kinds of reputation systems with different parameters impact the
economic security of the marketplace. Our emphasis here is on the protection of
consumers by means of an ability to distinguish between cheating participants
and honest participants, as well as the ability to minimize losses of honest
participants due to scam.
