Theodore Lowi's theory of interest-group liberalism constitutes a partial and wrongful abdication by government of its authority over policy. argues that lawmakers are rightly prevented from using government to promote group interests. posits that interest groups result in an efficient use of society's resources. describes the effect of groups on policy, resulting in a system of rule by majorities. deals with the tendency of officials to support the policy demands of the interest group or groups that have a special stake in a policy.