The choice of electoral systems in new democracies: a case study of South Korea in 1988

Most theories about electoral system choice are based on the experiences of Western European countries, many of which shifted from majority/plurality rule to proportional representation (PR) at the turn of the twentieth century. This article aims to explain the choice of the South Korean legislative electoral system in 1988 as an example of electoral institution choices in new democracies, which may be different from those in the Western European countries. Through analysing multiple steps leading to the choice of a single-member district plurality voting system, this article suggests three potentially generalizable findings. First, in new democracies, labour parties can only induce old parties to shift to a proportional representation system if they have mobilized the working class prior to democratization. Secondly, parties in the developing world at times face unusual systems that are neither majoritarian nor fully PR. Under such unusual systems, party size would not be a reliable predictor for the party's preference over electoral institutions. Finally, when parties choose a legislative electoral institution in a presidential system, parties tend to prefer an institution that helps them in the subsequent presidential election even though the institution might harm them in the upcoming legislative election.