Concordance (apportionment)

Static population-monotonicity^[1]: 147, also called concordance^[2]: 75, says that a party with more votes should not receive a smaller apportionment of seats. Failures of concordance are often called electoral inversions or majority reversals.^[3]

References

1. Balinski, Michel L.; Young, H. Peyton (1982). Fair Representation: Meeting the Ideal of One Man, One Vote. New Haven: Yale University Press. ISBN 0-300-02724-9.
2. Pukelsheim, Friedrich (2017), Pukelsheim, Friedrich (ed.), "Divisor Methods of Apportionment: Divide and Round", Proportional Representation: Apportionment Methods and Their Applications, Cham: Springer International Publishing, pp. 71–93, doi:10.1007/978-3-319-64707-4_4, ISBN 978-3-319-64707-4, retrieved 2021-09-01
3. Miller, Nicholas R. (2012), Felsenthal, Dan S.; Machover, Moshé (eds.), "Election Inversions by the U.S. Electoral College", Electoral Systems: Paradoxes, Assumptions, and Procedures, Berlin, Heidelberg: Springer, pp. 93–127, doi:10.1007/978-3-642-20441-8_4, ISBN 978-3-642-20441-8, retrieved 2024-07-13