Compulsory voting
, 22 countries were recorded as having compulsory voting. Of these, only 10 countries (additionally one Swiss canton and one Indian state) enforce it. Of the 30 member states of the Organisation for Economic Co-operation and Development, 10 had forms of compulsory voting.
Donkey vote
Donkey votes have been observed in democracies other than Australia, even those without compulsory preferential voting, although the presence of these two factors in Australia makes the phenomenon more visible.