Theoretical Expectations and the Actual Outcomes of Electoral Systems: How to Measure the Size of the Deviation? Cover Image

Teoretické očakávania a skutočné výstupy volebných systémov: Ako merať veľkosť deviácie?
Theoretical Expectations and the Actual Outcomes of Electoral Systems: How to Measure the Size of the Deviation?

Author(s): Miroslav Nemčok, Jakub Šedo
Subject(s): Electoral systems
Published by: Masarykova univerzita nakladatelství
Keywords: Electoral Systems; Theoretical Expectations; Size of Deviation; Measurement Tool; Seat Product Model;

Summary/Abstract: The paper criticizes current conceptual frameworks focused on the evaluation of the performance of electoral systems. It offers a new tool allowing researchers to measure the size of the deviation of electoral outcomes from theoretical expectations. The index d = log[NS/(MS)1/6] is built on the Seat Product Model (Taagepera 2007b) and captures the deviations of electoral outcomes from predictions solely on the basis of two institutional factors – average district magnitude (M) and size of assembly (S). The theoretical background of index d is explained, and its reliability is further supported by conventional econometric methods based on empirical data.

  • Issue Year: XIX/2017
  • Issue No: 3-4
  • Page Range: 189-214
  • Page Count: 26
  • Language: Czech