Answers are grounded in this paper and cite their sources.
Appendices: A: Proportional Representation Formulas B: Indices of Disproportionality and Party System Characteristics C: Data: Sources, Additions, Corrections, Clarifications
No takes yet. Share an insight, caveat, or question.
A 1994 study studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: