The analogues to Pareto dominance and Pareto superiority, majority dom
inance and Majority superiority, allow restriction on the domain of ou
tcomes for majority-rule choices. The logical structure of the argumen
t extends and confirms the proposition that the effective alternatives
for collective choice are endogenously determined by the existent rul
e for making choices. Orthodox public choice theory has, explicitly or
implicitly, presumed that the choice alternatives are exogenous to th
e rule through which choices are made.