Interest group
An interest group advocates a shift in policy for reasons that is very directly related to its own economic or social interests, i.e. favourable to its own members. Unlike a lobby group they admit their direct interest in gaining from the policy.
We expect that Research Wiki will be infested with such groups more or less from day one, and that a Consumerium Research pilot will have to deal with this up front.
Such groups are modelled as ordinary factions within Consumerium Services so that they can easily develop joint institutional buying criteria.