Abstract
The paper reviews the debate over the various dimensions of electoral systems. It presents the major options and the main empirical and normative arguments in support of each of them. The objective is to look at each option from the perspective of its proponents and to summarize their reasoning as accurately as possible. A good case can be made for each option. The paper also assesses the empirical arguments in the debate through a systematic review of the evidence. In most cases the evidence tends to substantiate the arguments, though often with nuances. Finally, the paper identifies the major values invoked in the debate. These values closely correspond to what the literature suggests as the basic functions of democratic representation.
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