Ostrogorski's paradox
Ostrogorski's paradox is a voting paradox studied in social choice theory.[1]
The paradox states that if each voter during an election voted for the political party with which they agreed on a majority of issues, then it is still possible that a majority of voters will disagree with the winning majority party on every issue.[2]
The paradox resembles the structure underlying the Condorcet paradox and Simpson's paradox[2] and it has been proved that in every instance of Ostrogorski's paradox there is an underlying Condorcet paradox.[1]
It is named after Russian politician and political scientist Moisey Ostrogorsky.
References
[edit]- ^ a b Pigozzi, Gabriella (2006). "Two aggregation paradoxes in social decision making: the Ostrogorski paradox and the discursive dilemma" (PDF). Episteme. 2 (2): 119–128. doi:10.3366/epi.2005.2.2.119. S2CID 1271990.
- ^ a b Rae, Douglas W.; Daudt, Hans (1976). "The Ostrogorski Paradox: A Peculiarity of Compound Majority Decision". European Journal of Political Research. 4 (4): 391–398. doi:10.1111/j.1475-6765.1976.tb00542.x.