The electoral system of Belgium and its electoral reforms

This paper deals with the study of the electoral system of the Belgian House of Representatives and its electoral reforms. Belgium was the first European country to adopt an electoral system of proportional representation and, since then, its main elements have exhibited extraordinary stability. However, with the turn of the century, the coalition government headed by the liberal Guy Verhofstadt put the debate on institutional reforms at the center of the political agenda. This led to an electoral reform that involved several novelties: the "provincialization" of the electoral map, the establishment of a 5 percent threshold and the reduction of the list vote weight by half. In 2012, there was the last electoral reform, which consisted of the division of the controversial constituency of Brussels-Halle-Vilvoorde. This last episode shows the complexity of the Belgian federal model, consociational, bipolar and with centrifugal dynamics.