Analysis and Comparison of Greek Parliamentary Electoral Systems of the Period 1974-1999

An important topic, in electoral studies, is the choice of the electoral system, which will be applied in parliamentary elections, because parliamentary seats distributed to political parties differ when a different system is applied. In this paper we focus on the five latest electoral systems applied in Greek Parliamentary Elections. Each one of them is described and analysed, in detail. Different measures of disproportionality are used in order to evaluate and compare these systems. We provide implementation details and illustrations using the data set of the latest parliamentary elections of 1996 and various data sets generated by introducing noise to the initial data set