<Li> Alternative Vote Plus </Li> <Li> Dual member proportional </Li> <Tr> <Td> Other systems & related theory (show) <Ul> <Li> Cumulative voting </Li> <Li> Binomial voting </Li> <Li> Proxy voting <Ul> <Li> Delegated voting </Li> </Ul> </Li> <Li> Random selection (Sortition, Random ballot) </Li> </Ul> <Ul> <Li> Comparison of electoral systems </Li> <Li> Social choice theory <Ul> <Li> Arrow's theorem </Li> <Li> Gibbard--Satterthwaite theorem </Li> </Ul> </Li> <Li> Public choice theory </Li> </Ul> </Td> </Tr> <Ul> <Li> Cumulative voting </Li> <Li> Binomial voting </Li> <Li> Proxy voting <Ul> <Li> Delegated voting </Li> </Ul> </Li> <Li> Random selection (Sortition, Random ballot) </Li> </Ul>

Two rules of the united states electoral system